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(vertebrate zoology)
A family of waterfowl, including ducks, geese, mergansers, pochards, and swans, in the order Anseriformes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a family of aquatic birds of the order Anseriformes. The body length varies from 29 to 150 cm. The edges of the bill are lined with thin transverse plates or serrations. The feet are webbed. The dense plumage, which is white, gray, brownish, black, or spotted, has a thick down covering. Some Anatidae have a dark-blue, green, or spotted speculum on the wings. The majority fly well. Many are good divers, obtaining food from the water itself or from the bottom.

Anatidae, which include swans, geese, brants, and ducks, are distributed throughout the world. The family comprises 43 genera, which encompass 147 species. There are 58 species in the USSR, including eight species that occasionally migrate into but are not indigenous to the USSR.

Anatidae nest on the ground, in rock crevices, in tree hollows, or in burrows. A clutch contains two to 16 solid white, greenish, or yellowish eggs. Depending on the species, the eggs are incubated and the young are reared by the female alone, by the male alone, or by both. The South American duck of the genus Heteronetta is parasitic, that is, it lays its eggs in the nests of other Anatidae. Anatidae feed on plants and animals. Many are hunted commercially or for sport.


Ptitsy Sovetskogo Soiuza, vol. 4. Edited by G. P. Dement’ev and N. A. Gladkov. Moscow, 1952.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Of the 105,000 waterbirds counted, 70 species were represented, with migratory birds comprising two-thirds of the population.
The overall status of waterbird populations listed on the African-Eurasian Migratory Waterbird Agreement has slightly improved over the last 10 years, according to the seventh edition of the AEWA Conservation Status Review of Migratory Waterbirds in the Agreement Area, which provides a long-term view of the changing status of migratory waterbird populations listed under AEWA.
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Hundreds of thousands of waterbirds and thousands of eagles spend their non-breeding season in the Strait of Georgia, British Columbia (Butler and Campbell 1987; Baldwin and Lovvorn 1992; Lovvorn and Baldwin 1996; Eliott and others 2011).
A report from the Waterbird Harvest Specialist Group underlined the lack of European harvest data for waterbirds at the flyway level (Madsen et al.
The density of roads has a direct effect on waterbird habitat (Hirzel et al.
Wild waterbirds, the natural reservoir of low pathogenicity avian influenza viruses, are probably involved in long-distance spread of HPAI viruses (3,4).
Greatest waterbird abundance was in January, but highest species richness, was in the fall.
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Managers could also focus deer harvests in areas of high habitat suitability to increase the success of their wetland and waterbird management strategies.
To summarize bird use of these flooded fields and semipermanent wetlands, we tallied the total number of species (separating waterbird and landbird species) and the number of species with special conservation status.