Birds in Chukotka
The red-necked stint (Calidris ruficollis) is common in Chukotka. This bird was encountered at its nesting site in the Schirnaya Mountains. (Photo copyright © by Kaj Halberg)
The elegant Aleutian tern (Onychoprion aleuticus) breeds in subarctic coastal areas of far eastern Siberia and along the Aleutian Islands eastwards to western Alaska. We found a small colony on the Kosa Nikolaya sand spit. (Photo copyright © by Kaj Halberg)
Arctic skua (Stercorarius parasiticus) in its breeding territory, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
The pictures on this page were taken during a 3 week long stay in Chukotka, June 2011, together with Jens Gregersen and Max E. Nitschke. The Chukotka Peninsula is the extreme north-eastern part of Siberia.
The main purpose of this trip was to count breeding birds in specific areas, which Jens had been monitoring for several years to detect, whether bird populations here were stable. Many Siberian bird species are declining drastically these years, mainly because many of their roosting and feeding sites in eastern Asia have been drained and converted into shrimp farms, salt pans, or rice fields.
Initially, we stayed some days in Anadyr Airport City before venturing into Zolotoi Khrebet (’Golden Ridge’). This area has almost no roads, so transportation took place in a caterpillar, driven by Sasha, who is Russian. Towards the end of the trip we visited two long sand spits, Kosa Ruskaya Koshka (‘Russian cat’s sand spit’) and Kosa Nikolaya.
Our trip is related in depth on the page Travel episodes – Siberia 2011: Caterpillar trip in Chukotka.
Bird list
Families, genera, and species are presented in alphabetical order. When writing the text, I have relied heavily on the website ebird.org and various pages on Wikipedia. The nomenclature largely follows the IOC World Bird List (worldbirdnames.org). Information about etymology is often based on J.A. Jobling, 2010. The Helm Dictionary of Scientific Bird Names, Christopher Helm, London.
In case you encounter any errors on this page, I would be grateful to hear about it. You can use the address at the bottom of the page.
Anatidae Ducks, geese, and swans
At present, this large worldwide family contains 43 genera with about 146 species.
Anser Geese
This genus contains about 11 species, restricted to the Northern Hemisphere.
The generic name is the classical Latin word for geese.
Anser albifrons White-fronted goose
This bird is divided into 5 subspecies, breeding along the entire northern Siberian coastal areas, in Alaska and northern Canada, and western Greenland. The wintering areas include northern Ireland, northern Scotland, Holland, northern Germany, Hungary, the northern Black Sea coast, Iraq, the southern coast of the Caspian Sea, Japan, Korea, south-eastern China, southern United States, and northern Mexico.
The specific name is derived from the Latin albus (‘white’) and frons (‘forehead’), like the common name referring to the white feathers at the base of its bill. The salt-and-pepper markings on the breast of adult birds are distinctive of this species as well. These markings have given rise to a popular American name, specklebelly.
Pictures, depicting this species, are shown on the pages Animals – Birds: Birds in the United States and Canada, and Silhouettes.
Nest of white-fronted goose, Izvilistaya River. (Photo copyright © by Kaj Halberg)
Anser canagicus Emperor goose
This rather scarce goose breeds in coastal areas around the Bering Sea, primarily spending the winter on the Aleutian Islands and in British Columbia.
The specific name refers to its type locality, Kanaga Island, one of the Aleutian Islands.
Emperor goose, Kosa Ruskaya Koshka. (Photos copyright © by Kaj Halberg)
Aythya
A genus with 12 species, chiefly found in the Northern Hemisphere, with one species in New Guinea, Australia, New Zealand, and on some Pacific islands, another one in New Zealand, and one in Madagascar. Two species are critically endangered, the East Asian Baer’s pochard (A. baeri) and Madagascar pochard (A. innotata).
The generic name is derived from Ancient Greek aithyia, an unidentified seabird, mentioned by Greek grammarian Hesychius of Alexandria (5th or 6th Century A.D.), and also by Greek philosopher and scientist Aristotle (384-322 B.C.).
Aythya marila Greater scaup
This duck breeds in arctic and subarctic regions in Alaska, Canada, Iceland, Norway, Russia, and Siberia, eastwards to Chukotka and Kamchatka, spending the winter in western and eastern North America, the British Isles, the North, Baltic, Black, and Caspian Seas, and in Japan, Korea, and eastern China.
The specific name is Ancient Greek, meaning ‘charcoal embers’ or ‘coal dust’, alluding to the dark, iridescent green and black head of the drake.
Greater scaup, 2 males and one female (right), Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
Clangula hyemalis Long-tailed duck
A circumpolar bird, breeding as far south as southern Greenland, Iceland, central Norway, Magadan and southern Chukotka, extreme western Canada, and Maine, spending the winter in the northern Pacific, in the Great Lakes, along the American Atlantic coast, around southern Greenland, Iceland, and the British Isles, and in the Baltic Sea.
It is the only member of the genus.
The generic name is a diminutive of the Latin clangere (‘to resound’), referring to the loud call of the bird. The specific name is Latin, meaning ‘related to winter’. Presumably, Swedish naturalist Carl Linnaeus (1707-1778), when he named the bird Anas hyemalis in 1758, referred to the fact that this bird was only present in Sweden in winter.
Long-tailed duck, male and female, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
Male long-tailed duck, south of Zolotoi Khrebet. (Photos copyright © by Kaj Halberg)
Cygnus Swans
A genus with 6 long-necked birds, distributed on all continents except Antarctica. Genetic research indicates that the coscoroba swan (Coscoroba coscoroba) of South America is not a true swan, but more closely related to geese or shelducks.
The generic name is a Latinized form of the classical Greek word for swan, kyknos.
The name swan is derived from Indo-European swen (‘to sound’ or ‘to sing’), referring to the whooper swan (C. cygnus), which is very vocal.
Cygnus columbianus Tundra swan, Bewick’s swan
This smallish swan reaches a length of about 1.2 m, having a wingspan up to 2.1 m, and weighing up to 6.5 kg. Most authorities recognize two subspecies, the whistling swan (ssp. columbianus), which lives in North America, and Bewick’s swan (ssp. bewickii), which is found in Eurasia. Some authorities regard the two subspecies as separate species. They differ in bill colour, Bewick’s swan having a fairly large patch of yellow skin at the base of the bill, wheareas the whistling swan has dark skin with only a small yellow spot at the base.
If you regard these birds as a single species, it breeds in Arctic areas of Alaska and Canada, and in the northernmost parts of Siberia. The wintering areas of the whistling swan include several separate areas in western Canada, United States, and Mexico, and the central part of the Atlantic coast. Eastern populations of Bewick’s swan spend the winter in eastern China, Korea, and Japan, whereas western populations migrate to western Europe.
The total population of the whistling swan is around 200,000, and is slightly increasing. The population of Bewick’s swan is much smaller, less than 50,000, but is probably stable.
In 1803, American President Thomas Jefferson (1743-1826) ordered two army captains, Meriwether Lewis (1774-1809) and William Clark (1770-1838), to undertake an expedition across the western part of the North American continent, from the Mississippi River to the Pacific Ocean. During their 3-year long expedition, Lewis described countless plants and animals, many of which were new to science, including the tundra swan. The whistle-like call of the bird prompted Lewis to name it whistling swan.
The specific name refers to the Columbia River, the type locality of the whistling swan.
Bewick’s swan was named in 1830 by English naturalist William Yarrell (1784-1856) in honour of English engraver Thomas Bewick (1753-1828), who specialized in illustrations of birds and other animals. He is best known for the work A History of British Birds, which contains many fine wood engravings. He also illustrated several editions of Aesop’s Fables.
A picture, depicting the tundra swan, is shown on the page Animals – Birds: Birds in the United States and Canada.
Nest of tundra swan, Volchya River Delta, near Anadyr Airport City. (Photo copyright © by Kaj Halberg)
Histrionicus histrionicus Harlequin duck
This duck, the only member of the genus, breeds along fast-flowing streams in eastern Siberia and extreme north-eastern China, from the Lena River eastwards to Chukotka, southwards almost to the Korean border, in far western North America, southwards to Washington State, in far eastern Canada, in western and southern Greenland, and in Iceland.
The winter is spent in coastal waters near the breeding areas, extending southwards to Korea, Japan, northern California, and Virginia.
The breeding plumage of the male is very colourful and variegated, giving rise to the generic as well as the common name. The former is derived from the Latin histrio (‘actor’), whereas the common name refers to an Italian Middle Age comic figure, Arlecchino (in English Harlequin), who is characterized by his chequered costume.
The female is brownish, with white spots on the head.
Female harlequin duck, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
Mareca Wigeons and allies
A small genus with 5 species, comprising 3 species of wigeon, the gadwall (M. strepera), and the falcated teal (M. falcata). Previously, they were all included in the genus Anas.
The generic name is derived from a Brazilian-Portuguese word, marréco, meaning ‘small duck’.
Mareca penelope Eurasian wigeon
In breeding plumage, the male Eurasian wigeon is a very pretty bird, whereas the female is a uniform pale brown, with darker wings and whitish belly.
It breeds in Temperate Eurasia, from Iceland and Scotland eastwards to the Pacific, whereas the wintering quarters encompass the major part of Europe and the Middle East, northern and eastern Africa, the Indian Subcontinent, Indochina, southern China, Taiwan, and the northern Philippines. It is a common winter visitor in Taiwan.
In North America, it is a regular winter visitor to the Pacific lowlands, from Canada southwards to California. Small numbers are also seen elsewhere in the continent.
This species was named Anas penelope by Swedish naturalist Carl Linnaeus (1707-1778) in 1758. He may have referred to Penelope, who, in Homer’s Odyssey, was the wife of Odysseus. She was known for her fidelity to him, while he was away on his journeys. However, as most ducks are certainly not known for their fidelity, this connection is hard to discover.
Another possible explanation may be the Proto-Greek word penelops, mentioned as ‘some kind of bird’ by Greek grammarian Hesychius of Alexandria, who, probably in the 5th or 6th century A.D., compiled a lexicon of unusual and obscure Greek words. (Source: R. Beekes 2009. Etymological dictionary of Greek. Brill)
Wigeons, Anadyr Airport City. (Photos copyright © by Kaj Halberg)
Somateria Eiders
A small genus with 3 species, two of which, the king eider (S. spectabilis) and the spectacled eider (S. fischeri) breed in the High Arctic, whereas the common eider (below) also breeds in subarctic and northern temperate areas.
The generic name is derived from Ancient Greek soma (‘body’) and erion (‘wool’), alluding to the soft down feathers of these birds. The name eider is a corruption of æðarfugl, the Icelandic name of the common eider, derived from the Old Norse æðr.
Somateria mollissima Common eider
This beautiful duck has a circumpolar distribution, found along Arctic and Northern Temperate coasts, from the Kola Peninsula westwards across Scandinavia, the northern British Isles, Iceland, Greenland, Maine, Arctic Canada, and Alaska to Chukotka. It also breeds on Svalbard, Novaya Zemlya, Franz Josef Land, and other islands along the Siberian coast, but not on the mainland. The bird is mainly sedentary, although some birds move a little south outside the breeding season.
The nest of this species is built near the seashore, lined with down, which the female plucks from her own breast. This soft down has been harvested by people for hundreds of years, used as filling in pillows, quilts, and jackets. This harvesting was done with no harm to the birds, as it took place when the ducklings had left the nest.
In Northumberland, southern Scotland, the eider duck is known as the cuddy duck, named after Saint Cuthbert (c. 634-687), a monk, bishop, and hermit of the early Northumbrian Celtic church. While on the Farne Islands, he instigated special laws to protect the ducks and other seabirds, nesting on these islands.
The specific name is Latin, meaning ‘very soft indeed’, which like the generic name refers to the soft down feathers of the bird.
Eiders, taking off, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
Calcariidae Longspurs and allies
A small family with 5 or 6 species, divided into longspurs (Calcarius) with 3 species, snow buntings (Plectrophenax) with one or two species, and the thick-billed longspur (Rhynchophanes mccownii). They were formerly included in the family Emberizidae (below).
These birds are restricted to Eurasia and North America, living in a variety of habitats, including grasslands, tundra, mountains, and along coasts. They are migratory, some species spending the winter as far south as Mexico, central Europe, and Central Asia.
Plectrophenax nivalis Snow bunting
Divided into 4 subspecies, this iconic bird is the most northerly recorded passerine in the world, breeding as far north as Ellesmere Island, northern Greenland, Novaya Zemlya, and Franz Josef Land. South of the Arctic regions, there are small isolated populations on a few high mountain tops, including the Cairngorms in central Scotland, the Saint Elias Mountains on the southern Alaska-Yukon border, and the Cape Breton Highlands in south-eastern Canada. Subspecies townsendi is common in Chukotka.
In winter, it migrates as far south as southern Canada, northern United States, the British Isles, the Netherlands, Germany, Poland, and from Ukraine eastwards to Central Asia.
The only other species in the genus is the closely related McKay’s bunting (P. hyperboreus), which is restricted to the islands St. Matthew and Hall in the Bering Sea. Hybrids between the two have been recorded, and some authorities consider them conspecific.
The generic name is derived from Ancient Greek plektron (‘spur’) and phenax (‘deceiver’), thus ‘pretending to have a (cock’s) spur’, alluding to the long hind claw of these birds. The specific name is Latin, meaning ‘relating to snow’, thus ‘snow-white’.
Snow bunting males, Kosa Ruskaya Koshka. (Photos copyright © by Kaj Halberg)
Charadriidae Plovers and lapwings
Members of this family, comprising about 10 genera and c. 65 species of small to medium-sized waders, is found almost worldwide, the vast majority near wetlands.
Charadrius Ringed plovers, dotterels
These birds, counting about 32 species of mainly small waders, are found almost throughout the world, usually in wetlands.
The generic name is the classical Latin word for a yellowish bird, mentioned in Biblia Vulgata, a Latin translation of the Bible from the late 4th Century. The name was derived from the classical Greek term for a bird living in river valleys, kharadrios, derived from kharadra (‘ravine’).
Charadrius hiaticula Common ringed plover
This bird, currently divided into 3 subspecies, has a very wide breeding distribution, the nominate race found in temperate areas of north-western and northern Europe, from the British Isles and north-western France, Belgium, and Holland across Denmark and southern Scandinavia to the Baltic States, with scattered populations from Germany eastwards to Ukraine.
Subspecies tundrae is common from northern Scandinavia eastwards along the Siberian coast to Chukotka, on Novaya Zemlya and the New Siberian Islands, and sometimes a few on St. Lawrence Island in the Bering Sea.
The third subspecies, psammodromus, is distributed on Ellesmere and Baffin Islands, and in Greenland, Iceland, the Faroe Islands, and Svalbard. Some suthorities do not accept this subspecies.
The vast majority of the populations winter in Africa, with some birds in Madagascar, Arabia, Iraq, Iran, Pakistan, India, Sri Lanka, and along the southern shores of the Caspian Sea. Part of the populations in the British Isles, France, Belgium, and Holland are sedentary.
The specific name is an old Latin term for a plover.
Further south in North America, the common ringed plover is replaced by the very similar semipalmated plover (C. semipalmatus). In the old days, the two species were regarded as being conspecific.
The ringed plover is fairly common in Chukotka. This bird was encounted on the sand spit Kosa Nikolaya. (Photos copyright © by Kaj Halberg)
This ringed plover pretends to be sick, to lure away the photographer from its nest, Kosa Ruskaya Koshka. (Photos copyright © by Kaj Halberg)
Pluvialis Golden plovers
Formerly, it was believed that there was only a single species of golden plover, P. apricaria, which was divided into three subspecies. However, these subspecies have since been upgraded to separate species, the Eurasian golden plover (P. apricaria), which breeds in tundra from Iceland eastwards to central Siberia, the Pacific golden plover (below), and the American golden plover (P. dominica), which breeds in the northernmost regions of North America.
The only other member of the genus, the grey plover (P. squatarola), is presented on the page Animals – Birds: Birds in Africa.
The generic name is derived from the Latin pluvia (‘rain’). According to an old belief it would mean imminent rain, when golden plovers flocked.
Pluvialis fulva Pacific golden plover
This species is found along the Siberian coast, from the Jamal Peninsula eastwards to the Chukotka Peninsula and extreme western Alaska. In winter, the major part of the population migrate to the Indian Subcontinent, Southeast Asia, Australia, and some Pacific islands, but some fly to eastern Africa, and a few spend the winter in California. It is common in Chukotka.
The specific name is Latin, meaning ‘tawny’ or ‘yellowish-brown’, referring to the winter plumage.
Pictures, depicting the Pacific golden plover, are shown on the pages Animals – Birds: Birds in Taiwan, Birds in Africa, and Birds in the Indian Subcontinent.
Nest of Pacific golden plover, Anadyr Airport City. (Photo copyright © by Kaj Halberg)
Corvidae Crows and allies
This almost cosmopolitan family, which contains the largest passerines, has about 24 genera with more than 120 species of ravens, crows, rooks, jackdaws, jays, magpies, treepies, choughs, nutcrackers, and many others.
Numerous members of the family are presented on the page Animals – Birds: Corvids.
Corvus Ravens, crows, rooks
This genus with about 45 members occurs in virtually all temperate areas of the globe, with the exception of South America. The word raven generally applies to the largest species, although some smaller species are also named raven, including the fan-tailed raven (C. rhipidurus), which is depicted on the page Animals – Birds: Birds in Africa. The words crow and rook apply to slightly smaller species. Members of this genus are among the most intelligent birds.
The generic name is the classical Latin name of the common raven (below).
Corvus corax Common raven
The most widespread member of the family, the common raven occurs in almost all Arctic, subarctic, and temperate areas of the Northern Hemisphere. It is a tough bird that is resident in the entire distribution area. In the Himalaya, it may be encountered up to elevations around 5,000 m. It is common in Chukotka, nesting the most odd places, including on towers and scaffolds.
Due to its intelligent behaviour, this bird appears in several mythologies across Eurasia. In Norse mythology, two ravens, Hugin (‘thought’) and Munin (‘memory’), were the servants of the supreme god Odin, bringing news to him from all over the world.
The specific name is the classical Greek word for the common raven.
This raven is calling from a tower on an abandoned factory building, Anadyr Airport City. (Photo copyright © by Kaj Halberg)
This raven has built its nest in a tall radio tower, Kosa Ruskaya Koshka. When my companion Max climbed the tower to control the nest, the ravn circled above him, calling like mad. (Photos copyright © by Kaj Halberg)
The same raven is chased away by Arctic terns (Sterna paradisaea) from their breeding area, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
This raven nest, built on a tall scaffold in Zolotoi Khrebet, contains small chicks. (Photos copyright © by Kaj Halberg)
Emberizidae Old World Buntings
This family was formerly much larger, including many species now placed in the families Passerellidae (New World sparrows) and Calcariidae (above). Today, only a single genus, Emberiza, remains in the family, containing about 44 species, distributed in Europe, Africa, and Asia.
The generic name is derived from the Old German word for these birds, Embritz.
Emberiza pusilla Little bunting
The smallest bunting, only about 13 cm long. This fact is reflected in its specific name, which is Latin, meaning ‘very small’. It is very widely distributed in the Palaearctic taiga, from northern Sweden and Norway eastwards to Chukotka, with an isolated population in north-eastern China.
Almost the entire population winters from eastern Nepal and north-eastern India eastwards to southern China and northern Indochina. Some birds from the Scandinavian and western Russian populations stray to western Europe. In the British Isles it has been observed more than a thousand times.
Singing little bunting, Volchya River Delta, near Anadyr Airport City. (Photos copyright © by Kaj Halberg)
Gaviidae Divers, loons
This small family contains 5 species, all members of the genus Gavia, and all restricted to the Northern Hemisphere. In England, these birds are called divers, in America loons.
The generic name was used by Roman naturalist Pliny the Elder (23-79 A.D.) for some unidentified seabird, which he called sea mew (‘sea gull’). Hopefully, Pliny was able to separate a diver from a gull, so the identity of the bird that he mentions remains unknown.
Gavia stellata Red-throated diver, red-throated loon
The red-throated diver is the smallest of the divers, having a length of between 55 and 67 cm. In the winter plumage, it is not easy to separate from the black-throated and Pacific divers (G. arctica and G. pacifica respectively), but at close quarters it may be identified by its upturned bill. The red throat makes it easy to identify in the breeding plumage.
It has a circumpolar distribution, breeding in lakes in Arctic, subarctic, and northern temperate regions, southwards to western and south-eastern Canada, southern Greenland, Iceland, Scotland, southern Sweden, southern Siberia, Sakhalin Island, and Kamchatka. The major part of the population spend the winter in coastal waters and lakes further south, to Baja California, Florida, Portugal, the Mediterranean, Black, and Caspian Seas, Japan, Korea, eastern China, and Taiwan.
The specific name is Latin, meaning ‘set with stars’, referring to the white dots on the back of the bird in the winter plumage.
Red-throated diver, running on the surface before taking off, Kosa Nikolaya. (Photo copyright © by Kaj Halberg)
Gruidae Cranes
Cranes are medium-sized to large birds, comprising 15 species, divided into two subfamilies, Balearicinae with two species of crowned cranes in one genus, Balearica, and Gruinae with 13 species, which were once all placed in one genus, Grus, while the latest genetic studies divide them into five genera: Leucogeranus (1 species), Grus (8 species), and Antigone (4 species). The crowned cranes split out from true cranes at a very early stage, about 10 million years ago.
Antigone
Besides the sandhill crane (below), this genus contains the sarus crane (A. antigone) and the white-naped crane (A. vipio) in Asia, and the brolga crane (A. rubicunda) in Australia. They were formerly placed in the genus Grus.
In Greek mythology, Antigone was the daughter of Oedipus, who unwittingly killed his father Laius, king of Thebes, and married the widow, his mother Jocasta. When Jocasta learned the truth of their relationship, she hanged herself, and Oedipus, according to one version of the story, went into exile after blinding himself, accompanied by his daughters Antigone and Ismene.
Antigone canadensis Sandhill crane
The most numerous crane species in the world, numbering more than 1.2 million, and the population is still increasing, undoubtedly because the cranes have easy access to waste maize in the winter.
Today, five subspecies are recognized: canadensis, which breeds in eastern Siberia, Alaska, and northern Canada. It is the most abundant of the subspecies, comprising about 500,000 birds; tabida, which breeds in southern Canada, and northern and western U.S.; pratensis, which is found in Florida and the southernmost part of Georgia; pulla, which is restricted to the south-eastern corner of the state of Mississippi; and, finally, nesiotes, which is only found on Cuba. A sixth subspecies, rowani, is no longer accepted, and some authorities only acknowledge two subspecies, canadensis and tabida. The populations in Mississippi and on Cuba are very small and threatened with extinction.
Northern populations, including the Siberian breeding birds, spend the winter in south-western U.S. and Mexico, whereas the southern populations are resident.
The sandhill crane has spread considerably in Siberia in later years and is now a threat to many bird species by eating their eggs and young. This issue is described on the page Animals – Birds: Sandhill cranes – a threat to breeding birds.
Sandhill cranes in courtship display, Uglovaya Mountain, Zolotoi Khrebet. (Photos copyright © by Kaj Halberg)
Nest of sandhill crane, Uglovaya Mountain. (Photo copyright © by Kaj Halberg)
Laridae Gulls, terns, and skimmers
This cosmopolitan family constitutes 22 genera with about 100 species. A large number of species are described on the page Animals – Birds: Gulls, terns and skimmers.
Larus
Formerly, most gulls were placed in this genus, but genetic research has lead to the resurrection of the genera Ichthyaetus, Chroicocephalus, Leucophaeus, and Hydrocoloeus. The systematics of the larger species is very complicated, and a number of former subspecies have recently been elevated to separate species. Today, the genus may contain about 30 species.
The generic name is a Latinized version of Ancient Greek laros, the classical name for a kind of seabird.
Larus hyperboreus Glaucous gull
A very large and powerful bird, only slightly smaller than the largest of all gulls, the great black-backed gull (L. marinus). It breeds in Arctic regions, migrating southwards in the autumn, wintering in the North Atlantic and North Pacific Oceans, as far south as northern California, the Great American Lakes, New England, France, the Baltic Sea, north-eastern China, Korea, and Japan.
The specific name is derived from Ancient Greek hyperboreos, composed of hyper (‘over’) and boreios (‘northern’), in Greek mythology referring to a race of people living in the extreme north. The common name is derived from Ancient Greek glaukos (‘blue-grey’), alluding to the colour of the wings of some subspecies of the bird.
Glaucous gulls, resting on an iceberg, Kosa Ruskaya Koshka. (Photos copyright © by Kaj Halberg)
Larus vegae Vega gull
Previously, the Vega gull was treated as a subspecies of the herring gull (L. argentatus), but is today regarded as a separate species. As a breeding bird, it is distributed in north-eastern Siberia, from the Lena River eastwards to the Bering Sea, and it possibly also breeds on St. Lawrence Island and around Nome in Alaska. In winter, it migrates southwards to Japan, Korea, eastern China, and Taiwan.
It was first collected during the Vega Expedition 1878-80, carried out by the Swedish ship SS Vega, and was named after this expedition. Vega is the brightest star in the northern constellation of Lyra.
Vega gulls, Anadyr Airport City. Note the different eye colour of the birds on the roof, a common trait in this species. (Photos copyright © by Kaj Halberg)
This Vega gull has placed its nest on the roof of an abandoned building, Anadyr Airport City. (Photo copyright © by Kaj Halberg)
Vega gull, Volchya River Delta, near Anadyr Airport City. (Photo copyright © by Kaj Halberg)
Incubating Vega gull, Volchya River Delta. (Photo copyright © by Kaj Halberg)
Vega gulls, resting on an iceberg, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
Onychoprion
A small genus with 4 species, previously placed in the genus Sterna (below). Three of the species breed in tropical waters. The fourth is the Aleutian tern (below).
The generic name is derived from Ancient Greek onyx (‘claw’ or ‘nail’) and prion (‘saw’). Presumably, these birds have sharp claws.
Onychoprion aleuticus Aleutian tern
This elegant bird breeds in subarctic coastal areas of far eastern Siberia, and along the Aleutian Islands eastwards to western Alaska. Its wintering area was unknown until around 1980. It seems that most birds spend the winter around Indonesia and Malaysia, and it has also been recorded along the east coast of Australia in December.
Aleutian terns at their breeding site on Kosa Nikolaya sand spit. In the upper picture, two arctic terns (described below) are also seen. (Photos copyright © by Kaj Halberg)
Sterna Typiske terner
Denne slægt, der omfatter 11-13 arter, optræder over næsten hele verden, hovedsagelig i kystområder. Tidligere var 4 andre terner placeret i denne slægt, men er siden blevet overført til slægten Onychoprion.
Sterna Typical terns
This genus, comprising 11-13 species, occurs almost worldwide, mainly in coastal regions. Previously, 4 other terns were included in the genus, but have now been transferred to the genus Onychoprion.
The generic name is derived from Old English stearn, which appears in the poem The Seafarer, from the 10th Century. A similar word was used for these birds by the Frisians, whereas the Scandinavians used, and still use, the word terne (Danish and Norwegian) or tärna (Swedish).
Sterna paradisaea Arctic tern
This species has a circumpolar breeding distribution, found from the High Arctic southwards to the British Isles, northern France, Holland, Germany, the Baltic States, Kamchatka, southern Alaska, and New England. It mainly breeds along coasts, but in Arctic areas it may also be found in inland wetlands.
It is famous for its long-distance migration, flying from the northern breeding areas to Antarctica and back again every year, the shortest distance between these areas being 19,000 km. This means that it experiences two summers per year. One speculates if the bird doesn’t like dark nights.
A Dutch tracking study from 2013 has concluded that the average annual migration is about 48,700 km. An Arctic tern may live up to 30 years, and during its lifetime it may travel up to 2.4 million km.
Some examples of its long-distance migration: An adult bird, which was ringed on the island of Saltholm, Denmark, in May 1958, was shot along the pack ice close to the Antarctic coast south of Australia, in February 1959 – a distance of about 15,700 km. A chick, which was ringed in summer 1982 on the Farne Islands, Northumberland, England, reached Melbourne, Australia, in October, just 3 months after fledging – a journey of more than 22,000 km. A third example is a chick ringed in Labrador, Canada, in July 1928, which was found in South Africa 4 months later – a distance of about 12,600 km.
The specific name probably refers to the beauty and elegance of this bird.
Arctic terns, resting on an iceberg, Kosa Ruskaya Koshka. (Photos copyright © by Kaj Halberg)
Arctic terns, chasing away a raven (Corvus corax) from their breeding colony, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
Arctic terns in their breeding area on the sand spit Kosa Nikolaya. (Photos copyright © by Kaj Halberg)
Xema sabini Sabine’s gull
This small and beautiful gull is the only member of the genus. It breeds in arctic areas in northern Alaska, Canada, Greenland, Svalbard, and central and eastern Siberia. It travels very far to its wintering areas in two separate areas, off the coasts of Panama, Columbia, Ecuador, and northern Peru, and off the coasts of Angola, Namibia, and South Africa.
It seems that the generic name was taken out of the blue. It has been labelled “a fancy word, apparently devoid of meaning.” The specific and common names honour Irish astronomer, physicist, and Arctic explorer Edward Sabine (1783-1883), who collected a specimen in 1819, when he participated in an expedition, led by Captain John Ross (1777-1856), the aim of which was to search for the Northwest Passage. Later, Sabine became the 30th President of the Royal Society 1861-1871.
Some authorities include this bird in the genus Larus.
Sabine’s gull breeds here and there in Chukotka. These were observed at their breeding ground in a swampy area on Kosa Ruskaya Koshka. (Photos copyright © by Kaj Halberg)
Nest of Sabine’s gull, Kosa Ruskaya Koshka. (Photos copyright © by Kaj Halberg)
Motacillidae Wagtails, pipits, and longclaws
This family contains 6 or 7 genera with altogether about 65 species. Wagtails and pipits are found in most parts of the planet, whereas the colourful longclaws (Macronyx) are restricted to Tropical Africa. Some longclaws are presented on the page Animals – Birds: Birds in Africa.
Motacilla Wagtails
These birds, comprising about 13 species, were named for their long, often wagging tail. They are widely distributed in Europe, Africa, and Asia, with two species also encountered in Alaska.
The generic name is the classical Latin name of the white wagtail (below). It is derived from motare (‘to move’ or ‘to shake’), and the diminutive suffix illa, thus ‘the little shaker’, alluding to the tail of the white wagtail always bobbing up and down. However, some time during the Middle Ages the erroneous belief arose that cilla meant ‘tail’.
Motacilla alba White wagtail
There are altogether 11 subspecies of the white wagtail, breeding from eastern Greenland eastwards across Europe and Siberia to Alaska, southwards to Morocco, Iran, the Himalaya, and Taiwan. Various subspecies are presented on the page Animals: Urban animal life.
Subspecies ocularis, which is distributed in eastern Siberia and western Alaska, breeds here and there in Chukotka. It winters from north-eastern India eastwards to southern China and Taiwan, and thence southwards to the Malay Peninsula and Borneo.
The specific name is Latin, meaning ‘white’.
Male white wagtail, subspecies ocularis, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
Nest of white wagtail, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
Motacilla tschutschensis Eastern yellow wagtail
The taxonomy of yellow wagtails is complicated. Until recently, this species was regarded as a subspecies of the western yellow wagtail (M. flava), but most authorities now consider it a separate species, breeding from central Siberia eastwards to Alaska, southwards to Mongolia and northern China. It occurs here and there in Chukotka.
Four subspecies are presently recognized, the nominate tschutschensis, found from southern Siberia and Mongolia eastwards to Alaska, plexa, which breeds in northern Siberia, macronyx, breeding from eastern Mongolia eastwards to Manchuria and south-eastern Siberia (Ussuriland), and taivana, which is found from Ussuriland southwards to northern China and northern Japan.
It spends the winter from Indochina, southern China, and southern Japan southwards to Indonesia and northern Australia.
The specific name means ‘found in Chukotka’.
Eastern yellow wagtail, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
Eastern yellow wagtail, Kosa Nikolaya. (Photo copyright © by Kaj Halberg)
Muscicapidae Old World flycatchers
Genetic research has revealed that many smaller birds, which were formerly regarded as belonging to the thrush family (Turdidae), are in fact flycatchers. Today, the family is widely distributed in Africa and Eurasia, comprising about 51 genera and c. 324 species.
The family name is derived from the Latin musca (‘a fly’) and capere (‘to catch’).
Luscinia Nightingales and allies
Following genetic studies, this formerly large genus now contains only 4 species, two nightingales, the bluethroat (below), and the white-bellied redstart (L. phaenicuroides), an Asian species, which was previously the only member of the genus Hodgsonius.
The generic name is the classical Latin word for nightingales, probably derived from luscus (‘half-blind’), presumably in the meaning ‘well hidden’, alluding to the crepuscular habits of these birds, and cano (‘to sing’). Thus, it could be translated as ‘the little-seen songster’.
Luscinia svecica Bluethroat
Contrary to the nightingales, this colourful bird is very conspicuous, when it sings from the top of a bush. Divided into at least 10 subspecies, it is widely distributed in temperate and subarctic areas of Eurasia, from Norway eastwards to the Pacific Ocean and north-western Alaska, southwards to Spain, the Caucasus, and the Pamir Mountains, breeding in willow shrubs, birch forests, and marshy areas. The nominate subspecies is a common breeding bird in Chukotka.
Northern populations are migratory, spending the winter further south, mainly in northern Africa and the Indian Subcontinent.
The specific name is Latin, meaning ‘Swedish’. Olof Rudbeck the Younger (1660-1740), Swedish naturalist and linguist, professor of medicine, and principal of the university of Uppsala, was a pioneer of botany and ornithology. He collected the bluethroat in Lapland in 1695. To him, the colours of the male resembled those of the Swedish flag (which is today blue with a yellow cross, but in those days the yellow had a more orange hue), and he named it Avis Carolina in honour of the Swedish king Carl XI.
However, by 1758, when Carl Linnaeus (1707-1778) renamed the bird, the absolute power of the monarchy had been abolished, and Linnaeus, who normally followed his mentor Rudbeck closely, had strong links with the political party Hattarna (so named due to the hats the members wore). For this reason, he probably considered Svecica to be more politically correct than Carolina.
Male bluethroat, perched in a willow bush (Salix), near Anadyr Airport City. (Photos copyright © by Kaj Halberg)
Passeridae Old World sparrows, snowfinches
As the family name implies, these birds, comprising about 43 species in 8 genera, are restricted to the Old World. They are not closely related to the New World sparrows, which belong to the family Passerellidae. When the European settlers arrived in America, these birds reminded them of the sparrows back home, so they named them ‘sparrows’.
Passer Typical sparrows
A genus with about 28 species, widely distributed in Africa and Eurasia.
The generic name is the classical Latin word for sparrows.
Passer domesticus House sparrow
This well-known bird was originally native to Europe, northern and north-eastern Africa, and most temperate and subtropical areas of Asia, but has been introduced to almost the entire planet. In many areas, where it was previously common, it has declined dramatically in later years, mainly due to the increased usage of chemical fertilizers and insecticides.
The specific name is Latin, meaning ‘belonging to houses’, from domus (‘house’).
The house sparrow is rarely seen away from human habitation, but this one had strayed far from any building, coming to our camp on the sand spit Kosa Ruskaya Koshka, where our driver Sasha fed it with bread crumbs. (Photos copyright © by Kaj Halberg)
Phasianidae Pheasants and allies
This family, containing about 190 species, includes pheasants, partridges, junglefowl, Old World quails, peafowl, grouse, and many others. These birds are found worldwide, except in Antarctica.
According to the latest genetic research, guineafowl and New World quails are treated as separate families, Numididae and Odontophoridae, respectively.
Lagopus Ptarmigans, grouse
A small genus with 4 species, found in Arctic, subarctic, and montane temperate areas in the Northern Hemisphere.
The generic name is derived from Ancient Greek lagos (‘hare’) and pous (‘foot’), referring to the feathered legs of these birds.
The word ptarmigan stems from the Gaelic tarmachan, meaning ‘croaker’. The silent initial p was added in 1684, inspired by Ancient Greek, in which an initial p is often silent, for instance in pteron (‘feather’).
Lagopus muta Rock ptarmigan
The rock ptarmigan breeds in a vast area in Arctic and subarctic regions of Eurasia, North America, Greenland, and Iceland, and also in some temperate mountains in Scandinavia, Scotland, the Pyrenees, the Alps, the Pamir Mountains, the Altai Mountains, Ussuriland (south-eastern Siberia), and a few places in Japan. Most populations are sedentary, but some American birds move a little south in winter.
The specific name is Latin, meaning ‘mute’, which is erroneous, as the male does have a simple croaking song.
Male rock ptarmigan, Schirnaya Mountains, Zolotoi Khrebet. (Photo copyright © by Kaj Halberg)
Female rock ptarmigan, Zolotoi Khrebet, near Anadyr Airport City. (Photo copyright © by Kaj Halberg)
Nest of rock ptarmigan, Schirnaya Mountains. (Photos copyright © by Kaj Halberg)
Scolopacidae Sandpipers and allies
This family contains about 15 genera and 95 species of waders, found across the globe.
Calidris
Today, there are 24 species of smallish to very small waders in this genus. Previously, it contained fewer species, but several birds, which were previously placed in other genera, have been moved to this genus, including ruff (C. pugnax) and spoon-billed sandpiper (below). A large number of species are described on the page Animals – Birds: Calidris sandpipers.
The major part of these birds breed in Arctic areas, a few also in sub-Arctic and northern temperate regions. They spend the winter on shores and in inland wetlands in temperate, subtropical, and tropical regions around the world.
The generic name is derived from Ancient Greek kalidris, a term used by Greek philosopher Aristotle (384-322 B.C.) for some grey-coloured water bird. The English term for the smallest members of the genus is stint, of unknown origin. It may stem from the call of the little stint (C. minuta), a sharp stit.
Calidris alpina Dunlin
A very widespread bird with a circumpolar distribution, divided into 10 subspecies. It breeds in Arctic, sub-Arctic and northern temperate regions, southwards to southern Alaska, Hudson Bay, Iceland, the British Isles, northern Germany, Poland, and the Baltic States, but is absent from southern Siberia and Central Asia. Subspecies sakhalina is distributed from north-eastern Russia eastwards across a vast area to Chukotka.
It winters in western and southern Europe, northern Africa, Arabia, northern India, northern Indochina, southern China, Korea, and Japan. It may be seen year-round in the British Isles, Norway, and Denmark.
In later years, most European populations have declined drastically due to draining or other changes of suitable habitats.
The specific name refers to mountains of Lapland, from where Swedish naturalist Carl Linnaeus (1707-1778), when he described the bird in 1758, had obtained a specimen. The common name stems from Old English dunling, first recorded around 1530. It is derived from dun (‘dull brown’), with the suffix ling, meaning a person or another being.
Dunlin, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
Feeding dunlin, near Anadyr Airport City. (Photo copyright © by Kaj Halberg)
Sleeping dunlin, near Anadyr Airport City. (Photo copyright © by Kaj Halberg)
Calidris mauri Western sandpiper
In the breeding season, this species is essentially restricted to the tundra in Alaska, where it is abundant, especially in the Yukon Delta. Small and unstable breeding populations also occur in Chukotka, and on St. Lawrence Island in the Bering Sea.
In autumn, it migrates to the Pacific and Atlantic shores, from extreme south-western Canada and New Jersey southwards through the Caribbean, Mexico, and Central America to northern and western South America.
The specific name was given in honour of Italian botanist Ernesto Mauri (1791-1836), director of the botanical garden in Rome.
Feeding male western sandpiper, Kosa Ruskaya Koshka. (Photos copyright © by Kaj Halberg)
Male western sandpiper in courtship display, Kosa Ruskaya Koshka. (Photos copyright © by Kaj Halberg)
Calidris pygmaea Spoon-billed sandpiper
This small wader resembles several species of stints, but at close quarters its peculiar bill, shaped like a broad spade, is revealed. Due to the bill, some taxonomists place the bird in a separate genus, Eurynorhynchus.
In the breeding season, it is restricted to Arctic and sub-Arctic tundra along coasts of north-eastern Siberia, from Chukotka southwards to the northern part of Kamchatka. It has declined alarmingly in later years, mainly due to destruction of many of its feeding areas in China, on which it is dependent on its way to the wintering areas in southern China, Indochina, and to some degree eastern India. These feeding areas have been converted into salt pans, shrimp farms, and rice fields.
Today, the world population numbers maybe fewer than 100 breeding pairs, and it is feared that it will become extinct in the wild within a few decades. A captive population exists in Slimbridge Wetland Wildlife Reserve, Gloucestershire, England.
Male spoon-billed sandpiper in breeding plumage, photographed in its territory, Kosa Ruskaya Koshka. In 2011, when we visited this sandspit, there was a single pair, possibly 2, in this area. Other years, up to 4 pairs have been found here. (Photos copyright © by Kaj Halberg)
Calidris ruficollis Red-necked stint
This small stint is a common breeding bird in Arctic and sub-Arctic tundra of northern Siberia, from the Taimyr Peninsula eastwards to Chukotka. Occasionally, a few pairs breed in western Alaska.
It spends the winter in a vast area, from north-eastern India and Bangladesh eastwards to southern China, and thence southwards through Indochina, Malaysia, Indonesia, the Philippines, and New Guinea to Australia and New Zealand.
The specific name is derived from the Latin rufus (‘reddish’) and collum (‘neck’), alluding to the breeding plumage. In winter, the underside is almost pure white.
Red-necked stint at its breeding site, Schirnaya Mountains. (Photos copyright © by Kaj Halberg)
Incubating red-necked stint, well hidden among withered grass, Schirnaya Mountains. (Photos copyright © by Kaj Halberg)
Nest of red-necked stint, Schirnaya Mountains. Nesting material includes leaves of dwarf birch (Betula nana). (Photos copyright © by Kaj Halberg)
Calidris temminckii Temminck’s stint
This small species is a common breeding bird in a vast area, from central and northern Scandinavia and northern Finland eastwards across Arctic and sub-Arctic tundra of Russia and Siberia to Chukotka, and also on the New Siberian Islands.
It spends the winter around the Mediterranean, in the sahel zone of Africa, and in Arabia, the Indian Subcontinent, Indochina, southern China, Taiwan, Malaysia, and Borneo.
In his book Arktisk sommer, Danish artist Jens Gregersen says: “When I arrived at Tobseda near the delta of the Pechora River in June 2003, I was well received by Dutch zoologist Rudolf Drent (1937-2008). “Look at the small helicopter!” he exclaimed. What he referred to was a Temminck’s stint, which stood motionless in the air, sounding like some distinct grasshopper.”
What he referred to was the remarkable courtship display of the male Temminck’s stint, in which he partly stays motionless in the air with swirling wings, partly runs after the female with lifted wings.
The specific and common names commemorate Dutch zoologist Coenraad Jacob Temminck (1778-1858), who was the first director of the National Museum of Natural History in Leiden, from 1820 until his death. He described this stint in 1815.
Temminck’s stint, Anadyr Airport City. (Photos copyright © by Kaj Halberg)
Nest of Temminck’s stint, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
Calidris tenuirostris Great knot
As its name implies, this is one of the largest members of the genus. It breeds in mountains in Arctic and sub-Arctic tundra of north-eastern Siberia, from Yakutia eastwards to Chukotka. It is a regular visitor to western Alaska.
The population of this bird has decreased alarmingly, mainly due to destruction of many of its feeding areas in China, on which it is dependent on its way to the wintering areas in Malaysia, Indonesia, the Philippines, New Guinea, and Australia. These feeding areas have been converted into salt pans, shrimp farms, and rice fields. Today, the bird is listed as endangered by IUCN.
The specific name is derived from the Latin tenuis (‘slender’) and rostrum (‘bill’).
The pattern on breast and back in the breeding plumage of the great knot blends remarkably well with the surroundings. This pair in their nesting territory was observed in the Zolotoi Khrebet Mountains, near Anadyr Airport City. (Photos copyright © by Kaj Halberg)
Gallinago Snipes
Members of this genus, comprising 18 species, breed on all continents except Australia and Antarctica. Most members are migratory, and Latham’s snipe (G. hardwickii) spends the winter in Australia.
The generic name is the classical Latin word for snipe, derived from gallina (‘small hen’) and the suffix ago (‘resembling’).
Gallinago gallinago Common snipe
The common snipe is the most widespread member of the genus, found in wetlands in subarctic and temperate regions of Eurasia, eastwards to the Pacific Ocean, southwards to France, Romania, Kashmir, north-eastern China, and Kamchatka. It also breeds on the Azores and the Aleutian Islands. It is found all-year round in western Europe, but the vast majority of the population is migratory, spending the winter in southern Europe, Tropical Africa, the Middle East, the Arabian Peninsula, and Tropical Asia.
There are two subspecies, faeroeensis in Iceland, the Faroes, and the Shetland and Orkney Islands, and the nominate gallinago in the rest of the distribution area. Previously, the North American Wilson’s snipe (G. delicata) was also regarded as a subspecies of the common snipe.
Common snipe, Anadyr Airport City. (Photo copyright © by Kaj Halberg)
Phalaropus Phalaropes
These birds, comprising 3 species, are unusual among waders for their feeding technique, and for spending the non-breeding season in tropical oceans, often far from the shore. When feeding, they swim in small circles, creating a small whirlpool, which brings food items, such as insects and small crustaceans, to the surface, where the bird plucks them with its long, slender bill. It is also unusual that the female has brighter colours than the male. This is probably an adaptation to the fact that the male incubates the eggs and takes care of the young.
The red-necked phalarope (below) and the grey phalarope (P. fulicarius) are circumpolar breeders in Arctic and subarctic regions, whereas Wilson’s phalarope (P. tricolor) breeds in western North America.
The generic name is derived from Ancient Greek phalaris (‘coot’) and pous (‘foot’), alluding to their lobed feet, which are somewhat similar to those of the coots (Fulica). These lobes are an adaptation to their swimming habit.
Phalaropus lobatus Red-necked phalarope
This phalarope breeds in lakes in Arctic, subarctic, and northern temperate regions of Eurasia and North America, southwards to Ireland, Scotland, central Norway, northern Finland, northern Kamchatka, and south-eastern Canada. It is common in Chukotka.
It spends the winter in tropical waters off western Africa, Arabia, Southeast Asia, and Central and South America.
The specific name is Latin, meaning ‘lobed’, like the generic name referring to its lobed feet.
Red-necked phalarope, male (in front) and female, Anadyr Airport City. (Photo copyright © by Kaj Halberg)
Female red-necked phalarope, Anadyr Airport City. (Photo copyright © by Kaj Halberg)
These females are feeding by swimming around in circles, which causes small animals to be whirled to the surface, Anadyr Airport City. (Photos copyright © by Kaj Halberg)
Preening female, Anadyr Airport City. (Photo copyright © by Kaj Halberg)
Tringa
This genus, comprising 13 species, is distributed almost worldwide.
The generic name was applied to the green sandpiper (T. ochropus) by Italian naturalist Ulisse Aldrovandi (1522-1599), who was the founder of the botanical garden of Bologna – one of the first of its kind. The name is derived from trungas, the classical Greek term for a thrush-sized, tail-bobbing wading bird, mentioned by Greek scientist and philosopher Aristotle (384-322 B.C.).
Tringa brevipes Grey-tailed tattler
This bird breeds in central and eastern Siberia, southwards almost to the Chinese border, and to southern Kamchatka. When the breeding season is over, it migrates to Southeast Asia, New Guinea, Australia, and New Zealand. It breeds here and there in Chukotka.
The specific name is derived from the Latin brevis (‘short’) and pes (‘foot’), whereas the popular name tattler was given in allusion to its call.
It was previously named Heteroscelus brevipes, but genetic research has shown that it is closely related to Tringa sandpipers.
Calling grey-tailed tattler, Schirnaya Mountains, Zolotoi Khrebet. (Photos copyright © by Kaj Halberg)
Tringa glareola Wood sandpiper
This bird has a very wide distribution, found from northern Norway, England, and Germany eastwards across the entire Siberia to the Chukotka and Kamchatka Peninsulas. It winters in sub-Saharan Africa, in large parts of subtropical and tropical Asia, and in Australia. It is one of the commonest waders in Chukotka.
It differs from the similar green sandpiper (T. ochropus) by having longer, greenish legs, and the back is heavily mottled. In flight, it sometimes emits a loud yif-if-if.
The specific name is a diminutive of the Latin glarea (‘gravel’), thus ‘the one found in small gravel’ (= sand?).
Wood sandpiper, Anadyr Airport City. (Photos copyright © by Kaj Halberg)
This wood sandpiper is feeding at the edge of a pond, Anadyr Airport City. (Photos copyright © by Kaj Halberg)
Stercorariidae Skuas, jaegers
A small family with only one genus, Stercorarius, comprising 4 larger species and 3 smaller species, the latter called jaegers in North America. They breed in the polar regions, some species also in temperate areas. The 3 smaller species are long-distance migrants, the long-tailed and the Arctic skuas (both described below) wintering in the southern seas.
The name skua stems from the Faroese word skúgvur, for the great skua (S. skua), so named due to a colony of this bird on the island of Skúvoy. Other species of skuas are called kjógvi in Faroese, an imitation of the call of the Arctic skua (below). The name jaeger stems from Jäger, which means ‘hunter’ in German, alluding to these birds hunting other seabirds to make them disgorge their food, which the skuas then eat. This habit is also reflected in the genus name, which means ‘of dung’ in Latin. It was once thought that the food disgorged were excreta.
They also eat eggs and young of other birds, and the great skua is known to hunt and kill adult birds of various species. Some skuas also catch fish, and others are known to scavenge dead seals and penguins. Lemmings constitute an important food item of the 3 smaller species in their breeding areas.
Stercorarius longicaudus Long-tailed skua, long-tailed jaeger
The smallest skua, the adult bird unmistakable in the breeding plumage with its elongated central tail feathers, which may be up to 15 cm long. This fact is reflected in its specific name, derived from the Latin longus (‘long’) and cauda (‘tail’). It comes in 3 colour morphs, dark, medium, and pale.
It has a circumpolar breeding distribution in Arctic and subarctic regions, extending into temperate mountains in Scandinavia. In Chukotka, it occurs here and there. It is a long-distance migrant, wintering in the southern seas.
Long-tailed skua in its breeding territory, Volchya River Delta, near Anadyr Airport City. (Photos copyright © by Kaj Halberg)
Stercorarius parasiticus Arctic skua, parasitic jaeger
A little larger than the long-tailed skua, and with much shorter elongated tail feathers in the breeding plumage, to about 7 cm long. It also has 3 colour morphs.
The breeding area is about the same as the long-tailed skua, but it also occurs in Iceland, the Faroes, Scotland, and southern Norway, Sweden, and Finland. It is rather common in Chukotka.
The winter is spent in the seas around southern South America, southern Africa, New Guinea, Australia, and New Zealand.
Arctic skuas in their breeding territory, Kosa Ruskaya Koshka. (Photos copyright © by Kaj Halberg)
Nest of Arctic skua, Kosa Ruskaya Koshka. (Photo copyright © by Kaj Halberg)
(Uploaded October 2025)