Mergus


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Related to Mergus: Mergus merganser, Mergus serrator
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Mergus

 

a genus of birds of the famuly Anatidae. The bill is long and narrow, with sharp toothlike projections on the edges of the mandibles. The head is crested.

The genus comprises seven species; of these, five are distributed in the northern hemisphere, one in tropical South America, and one on the Auckland Islands. There are four species in the USSR. The common merganser, or goosander (M. merganser), has a body length of about 80 cm and weighs 1.5-2 kg. It lives in the forest zone from the western borders to Kamchatka, in the mountains of Middle Asia, and on Lake Sevan. The red-breasted merganser (M. serrator) weighs 0.8-1.2 kg. It is distributed in the forest-tundra and forest zones. There are a few colonies on the Black Sea and on Lake Sevan. The M. squamatus is rare (Sikhote-Alin Range). The smew (M. albellus) has a body length of up to 50 cm and weighs 0.5-0.8 kg. It is distributed in the forest and forest-steppe zones and in some places in the south as far as the lower reaches of the Dnieper and Volga rivers.

The birds either winter on unfrozen bodies of water near their nesting places or fly south. They settle on rivers and lakes that are abundant in fish; the smew settles primarily on tidal lakes. The Mergus are excellent divers. They nest on the ground, in rock crevices, or in tree hollows. Eight to ten eggs are laid per single nesting, with as many as 15 by the goosander. The birds feed on fish, on water insects, and, more rarely, on mollusks. Their commercial value is small.

REFERENCE

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 ?
Key words: Mergus squamatus, diving behavior, diving duration, diving pause duration.
Concerning European waterbirds, for instance the north European populations of mallard Anas platyrhynchos have been declining or stable, the Baltic breeding population of the common eider Somateria mollissima has decreased, the Baltic and Scandinavian populations of the common merganser Mergus merganser have probably decreased, and the populations of the goldeneye Bucephala clangula in northern and northwestern Europe have been stable (Wetlands International 2006).
The last to arrive at the end of October or beginning of November are the red-breasted mergansers (Mergus serrator) and goosander (M.
Cliffside Park attorney Athan Mergus handled the legal details for the seller, Hudson Realty Inc.
Common name Genus and species Canada Goose Branta canadensis Mallard Anas platyrhynchos Bufflehead Bucephala albeola Red-breasted Merganser Mergus serrator American Coot Fulica americana American Crow Corvus brachyrhynchos Cedar Waxwing Bombycilla cedrorum Northern Shrike Lanius excubitor American Tree Sparrow Spizella arborea Dark-eyed Junco Junco hyemalis Red-winged Blackbird Agelaius phoeniceus Common Grackle Quiscalus quiscula Brown-headed Cowbird Molothrus ater Common Redpoll Carduelis flammea American Goldfinch Carduelis ristis Table 2 Winter resident bird species in the Grand Calumet River corridor.
Food-searching behaviour of the common merganser (Mergus merganser) I: Functional responses to prey and predator density.
Fall diets of red-breasted merganser (Mergus senator) and walleye (Sander vitreus) in Sandusky Bay and adjacent waters of western Lake Erie.
Muscovy duck Cairina moschata Mallard Anas platyrhynchos Greater scaup Aythya marila Tufted duck Aythya fuligula Common merganser Mergus merganser Smew Mergus albellus Falconiformes Common buzzard Buteo buteo Rough-legged hawk Buteo lagopus Peregrine falcon Falco peregrinus Galliformes Common peafowl Pavo cristatus Domestic chicken Gallus gallus Charadriiformes (herring gull) Larus argentatus Strigiformes (eagle owl) Bubo bubo Passeriformes (Eurasian magpie) Pica pica All birds No.
The seller, Hudson Realty Management, was represented by Athan Mergus, Esq.
leucogeranus, Grus monacha, Grus japonensis, Haliaeetus albicilla, Larus relictus, Mergus squamatus and Otis tarda) are listed as grade I nationally protected wild animals.