Tufted duck | |
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Male (above) and female (below) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Anseriformes |
Family: | Anatidae |
Genus: | Aythya |
Species: | A. fuligula |
Binomial name | |
Aythya fuligula | |
Global distribution map Year-Round Range Summer Range Winter Range | |
Synonyms | |
Anas fuligulaLinnaeus, 1758 |
The tufted duck (or tufted pochard) (Aythya fuligula) is a small diving duck with a population of close to one million birds, found in northern Eurasia. They are partially migratory. The scientific name is derived from Ancient Greek aithuia, an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin fuligo 'soot' and gula 'throat'. It is a game bird. [3]
The tufted duck was formally described in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae under the binomial name Anas fuligula. [4] He cited the Swiss naturalist Conrad Gessner who in 1555 had used the identical name Anas fuligula in his Historiae animalium . [5] Linnaeus specified the type locality as Europe but in 1761 restricted it to Sweden. [6] [7] The tufted duck is now one of 12 species placed in the genus Aythya that was introduced in 1822 by the German naturalist Friedrich Boie. [8] The genus name is from Ancient Greek aithuia, an unidentified seabird mentioned by Aristotle, Hesychius and other authors. The specific epithet fuligula combines Latin meaning "soot" and gula meaning "throat". [9] The species is monotypic: no subspecies are recognised. [8] An alternative common name is "tufted pochard". [10]
The adult male is all black except for white flanks and a blue-grey bill with gold-yellow eyes, along with a thin crest on the back of its head. It has an obvious head tuft that gives the species its name. The adult female is brown with paler flanks, and is more easily confused with other diving ducks. In particular, some have white around the bill base which resembles the scaup species, although the white is never as extensive as in those ducks. The females' call is a harsh, growling "karr", mostly given in flight. The males are mostly silent but they make whistles during courtship based on a simple "wit-oo".
The only ducks which are similar are the greater scaup and lesser scaup, but these species have no tuft and a different call.
The tufted duck is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies. [11]
Refer to the following table for measurements of the tufted duck: [12]
Measurement | Male | Female |
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Range of mass | 753-1026.2 g | 629-906.8 g |
Average of mass | 889.6 g | 768.3 g |
Range of length | 40.6-45.7 cm | 40.6-45.7 cm |
Average of length | 43.2 cm | 43.2 cm |
Range of wingspan | 20.2-21.2 cm | 19.4-20.7 cm |
The tufted duck breeds throughout temperate and northern Eurasia. It occasionally can be found as a winter visitor along both coasts of the United States and Canada. It is believed to have expanded its traditional range with the increased availability of open water due to gravel extraction, and the spread of freshwater mussels, a favourite food. These ducks are migratory in most of their range, and overwinter in the milder south and west of Europe, southern Asia and all year in the British Isles. One individual has been reported as far south as Melbourne, Australia. They form large flocks on open water in winter.
Their breeding habitat is close to marshes and lakes with plenty of vegetation to conceal the nest. They are also found on coastal lagoons, shorelines and sheltered ponds.
In northern Europe breeding takes place between mid May and the end of July. They are not colonial but sometimes the nests can be in a loose group. Most nests are placed beside water; an island site is preferred. The nest is built by the female and consists of depression in the ground that is lined with grass, reeds and down. The clutch consists of 8–11 greenish-grey eggs that measure 59 mm × 41 mm (2.3 in × 1.6 in). They are incubated by the female starting after the clutch is complete so that they hatch synchonously. The female covers the eggs with down when she is away from the nest. The eggs hatch after around 25 days (range 23–28 days). The young are precocial and nidifugous. They can feed themselves and are cared for by the female who broods them when they are small. They typically fledge when aged between 45 and 50 days. Tufted ducks usually first breed at one year but occasionally at 2 years. [13]
These birds feed mainly by diving, but they will sometimes upend from the surface. [14] They eat molluscs, aquatic insects and some plants and sometimes feed at night.
They are hunted as sport in the UK, Italy, Iran, Finland and Denmark, and commercially in Iran. Eggs used to be (and maybe continue to be) gathered in Iceland. [15] Because it feeds on the water bottom, it can taste "muddy" and is considered a less tasty duck. [16]
The diving ducks, commonly called pochards or scaups, are a category of duck which feed by diving beneath the surface of the water. They are part of Anatidae, the diverse and very large family that includes ducks, geese, and swans.
The pintail or northern pintail is a duck species with wide geographic distribution that breeds in the northern areas of Europe and across the Palearctic and North America. It is migratory and winters south of its breeding range to the equator. Unusually for a bird with such a large range, it has no geographical subspecies if the possibly conspecific duck Eaton's pintail is considered to be a separate species.
The gadwall is a common and widespread dabbling duck in the family Anatidae.
The Eurasian wigeon or European wigeon, also known as the widgeon or the wigeon, is one of three species of wigeon in the dabbling duck genus Mareca. It is common and widespread within its Palearctic range.
The redhead is a medium-sized diving duck. The scientific name is derived from Greek aithuia, an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin americana, of America. The redhead is 40–56 cm (16–22 in) long with an 74–84 cm (29–33 in) wingspan; the weight ranges from 1,030–1,080 g (36–38 oz), with males weighing an average of 1,080 g (38 oz) and females an average of 1,030 g (36 oz). It belongs to the genus Aythya, together with 11 other described species. The redhead and the common pochard form a sister group which together is sister to the canvasback. This waterfowl is easily distinguished from most other ducks by the male's copper colored head and pale blue bill during the breeding season; from its close relative canvasback it is distinguished by the more rounded head, shorter bill, and yellow, not red, eye. The Eurasian common pochard is even more similar, but very rarely overlaps in range; it also differs in having a red eye, and a more acute, less rounded head shape.
The canvasback is a species of diving duck, the largest found in North America.
The ring-necked duck is a diving duck from North America commonly found in freshwater ponds and lakes. The scientific name is derived from Greek aithuia, an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin collaris, "of the neck" from collum, "neck".
The common pochard, known simply as pochard in the United Kingdom, is a medium-sized diving duck in the family Anatidae. It is widespread across the Palearctic. It breeds primarily in the steppe regions of Scandinavia and Siberia, and winters further south and west.
The garganey is a small dabbling duck. It breeds in much of Europe and across the Palearctic, but is strictly migratory, with the entire population moving to Africa, India, Bangladesh and Australasia during the winter of the Northern hemisphere, where large flocks can occur. This species was first described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae. Like other small ducks such as the Eurasian teal, this species rises easily from the water with a fast twisting wader-like flight.
The long-tailed duck or coween, formerly known as the oldsquaw, is a medium-sized sea duck that breeds in the tundra and taiga regions of the arctic and winters along the northern coastlines of the Atlantic and Pacific Oceans. It is the only member of the genus Clangula.
The greater scaup, just scaup in Europe or, colloquially, "bluebill" in North America, is a mid-sized diving duck, larger than the closely related lesser scaup and tufted duck. It spends the summer months breeding in Iceland, east across Scandinavia, northern Russia and Siberia, Alaska, and northern Canada. During the winter, it migrates south to the coasts of Europe, eastern Asia, and North America.
The lesser scaup is a small North American diving duck that migrates south as far as Central America in winter. It is colloquially known as the little bluebill or broadbill because of its distinctive blue bill. The origin of the name scaup may stem from the bird's preference for feeding on scalp—the Scottish word for clams, oysters, and mussels; however, some credit it to the female's discordant scaup call as the name's source. It is apparently a very close relative of the Holarctic greater scaup or "bluebill", with which it forms a superspecies. The scientific name is derived from Ancient Greek aithuia an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin, affinis "related to", from its resemblance to the greater scaup.
The ferruginous duck, also known as ferruginous pochard, common white-eye or white-eyed pochard, is a medium-sized diving duck from Eurosiberia. The scientific name is derived from Greek aithuia an unidentified seabird mentioned by authors including Hesychius and Aristotle, and nyrok, the Russian name for a duck.
The red-crested pochard is a large diving duck. The scientific name is derived from Greek Netta "duck", and Latin rufina, "golden-red". Its breeding habitat is lowland marshes and lakes in southern Europe and it extends from the steppe and semi-desert areas on the Black Sea to Central Asia and Mongolia, wintering in the Indian Subcontinent and Africa. It is somewhat migratory, and northern birds winter further south into north Africa.
The velvet scoter is a large sea duck, which breeds over the far north of Europe and the Palearctic west of the Yenisey basin. The genus name is derived from Ancient Greek melas "black" and netta "duck". The species name is from the Latin fuscus "dusky brown".
The white-faced whistling duck is a whistling duck that breeds in sub-Saharan Africa and much of South America.
Aythya is a genus of diving ducks, with twelve species currently accepted. The genus was described in 1822 by the German zoologist Friedrich Boie, with the type species being greater scaup. The name Aythya comes from the Ancient Greek word αυθυια, which may have referred to a sea-dwelling duck.
The red-billed teal or red-billed duck is a dabbling duck which is an abundant resident breeder in southern and eastern Africa typically south of 10° S. This duck is not migratory, but will fly great distances to find suitable waters. It is highly gregarious outside the breeding season and forms large flocks.
Baer's pochard is a diving duck found in eastern Asia. It is a resident bird in North and Central China, and formerly bred in southeast Russia and Northeast China, migrating in winter to southern China, Vietnam, Japan, and India. Baer's pochard is a monotypic species. The holotype was collected in middle Amur.
The New Zealand scaup, also known as the black teal or pāpango in Māori, is a diving duck species of the genus Aythya endemic to New Zealand. They weigh around 650 grams (23 oz) and measure around 40 centimetres (16 in), and have dark-coloured plumage. They are found throughout New Zealand in deep natural and man-made lakes and ponds.