Tufted Duck
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Tufted Duck

Tufted duck
Tufted-Duck-male-female.jpg
Male (above) and female (below)
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Anseriformes
Family: Anatidae
Genus: Aythya
Species:
A. fuligula
Binomial name
Aythya fuligula
Tufted Duck Range.png
Global map of sightings reported to eBird
  Year-Round Range
  Summer Range
  Winter Range
Synonyms

Anas fuligula Linnaeus, 1758

The tufted duck (Aythya fuligula) is a small diving duck with a population of close to one million birds, found in northern Eurasia. 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".[2]

Description

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 duck which is at all similar is the drake greater scaup which, however, has 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.

Refer to the following table for measurements of the tufted duck[3]:

Tufted duck measurements
Measurement Male Female
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

Distribution

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.

Habitat

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.

Food

These birds feed mainly by diving, but they will sometimes upend from the surface.[4] They eat molluscs, aquatic insects and some plants and sometimes feed at night.

Gallery

References

  1. ^ BirdLife International (2012). "Aythya fuligula". IUCN Red List of Threatened Species. 2012. Retrieved 2013.CS1 maint: ref=harv (link)
  2. ^ Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 64, 165. ISBN 978-1-4081-2501-4.
  3. ^ Azzi, MayaV; Garrison, RyanJ. "Aythya fuligula (tufted duck)". Animal Diversity Web. Retrieved .
  4. ^ Ogilvie, Malcolm A. (1986). "Tufted Duck". In Lack, Peter (ed.). The Atlas of Wintering Birds in Britain and Ireland. London, UK: T & AD Poyser. p. 110. ISBN 978-1-4081-3828-1. Retrieved 2014.

External links


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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