Aythya


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Noun1.Aythya - canvasbackAythya - canvasback; redhead; pochard; etc.  
bird genus - a genus of birds
Anatidae, family Anatidae - swimming birds having heavy short-legged bodies and bills with a horny tip: swans; geese; ducks
Aythya valisineria, canvasback, canvasback duck - North American wild duck valued for sport and food
Aythya ferina, pochard - heavy-bodied Old World diving duck having a grey-and-black body and reddish head
Aythya americana, redhead - North American diving duck with a grey-and-black body and reddish-brown head
bluebill, scaup, scaup duck, broadbill - diving ducks of North America having a bluish-grey bill
References in periodicals archive ?
Owen and Dix (1986) reported that wintering duck species exhibited a male-skewed sex ratio, particularly the common pochard Aythya ferina (29.5% female, n = 24,173) and northern shoveler Anas clypeata (39% females, n = 136).
(13) Mallard ducks (Anas platyrhynchos) and the canvasback duck (Aythya valisineria) had higher leucocyte counts during the summer than during the winter.
In 2005-06 and 2016-17, tufted duck (Aythya fuligula) was the most frequent duck species detected positive (5% of all wild birds).
Eagle prey species include: (1) dabbling ducks: American Wigeon (Anas americana), Mallard (Anas platyrhynchos), Northern Pintail (Anas acuta), and Green-winged Teal (Anas crecca); (2) diving ducks: Scaup (Aythya marila and A.
The biggest group was composed of tufted ducks (Aythya fuligula) at 2,692 individuals, followed by garganeys at 832 individuals and whiskered terns (Chlidonias hybrida) at 806.
common pochard Aythya ferina, northern shoveler Spatula clypeata, Eurasian wigeon Mareca penelope, northern pintail Anas acuta; Nagy et al.
The Ferruginous Duck Aythya nyroca (Guldenstadt, 1770) is a winter visitor and a breeding resident in Morocco [1, 2]; it winters regularly in the Northern part of the country, usually in small numbers, in comparison with Tropical Africa [2].
clypeata y Aythya affinis) durante las temporadas de caza noviembre 2012-febrero 2013 y noviembre 2013-febrero 2014 en la presa de Atlanatepec (N 19[grados] 33.596' y O 098[grados] 11.368'), ubicada en el estado de Tlaxcala, Mexico.
The other species that was studied was lesser scaup (Aythya affinis), known to form seasonal pair bonds and with relatively smaller penises.
Redhead Ay thy a americana Ring-necked Duck Aythya collaris Canvasback Aythya valisineria Lesser Scaup Aythya afpnis Bufflehead Bucephala albeola Ruddy Duck Oxyura jamaicensis Eared Grebe Podiceps nigricollis Clark's Grebe Aechmophorus clarkii Double-crested Cormorant Phalacrocorax auritus American White Pelican Pelecanus erythrarhynchos Great Blue Heron Ardea herodias Cattle Egret Bubulcus ibis White-faced Ibis Plegadis chihi American Coot Fulica americana Sandhill Crane Grus canadensis Killdeer Charadrius vociferans Semipalmated Plover Charadrius semipalmatus Black-necked Stilt Himantopus mexicanus American Avocet Recurvirostra americana Solitary Sandpiper Tringa solitaria Spotted Sandpiper Actitis mandarins Long-billed Curlew Numenius americanus Generic sandpiper Calidris sp.
Species of global conservation concern that either breed or winter in Cyprus include the Eurasian Curlew Numenius arquata, the Common Pochard Aythya ferina and the Ferruginous Duck Aythya nyroca, the latter of which breeds at the newly restored Akrotiri Marsh.
islandica Canvasback Aythya 1210 787 valisineria Scaup (unidentified) * 943 613 Greater Scaup Aythya 943 613 marila Lesser Scaup A.