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ThesaurusAntonymsRelated WordsSynonymsLegend:
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 ?
This time lag might be related to the limited mobility of wintering Aythya ducks, which, in contrast to Eurasian wigeons, rarely fly over land between foraging and roosting sites.
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.
De las 24 especies registradas se tiene un total de ocho aves migratorias (Branta bernicla, Aythya americana, Aythya affinis, Pelecanus erythrorhynchos, Tringa semipalmata, Numenius americanus, Limosa fedoa y Larus delawarensis) que corresponden al 38% del total; y las 16 especies restantes (62%) se consideran residentes ya que estan presentes todo el ano.
The actions will benefit two Annex I-listed bird species (pygmy cormorant Phalacrocorax pygmeus and ferruginous duck Aythya nyroca) in the Natura 2000 site Danube water course Bazias Iron Gates .
diazi y Aythya americana en el caso de los anatidos y Calidris mauri en los playeros.
lesser scaup Aythya affinis which adjust their breeding based on the photoperiod rather than temperature or habitat availability, and should hence be more likely affected by climate change in the long-term (DeVink et al.
The north and north-eastward shift of the distribution range of species characteristic of western, south-eastern and southern Europe registered in Lithuania throughout the 20th century (great cormorant Phalacrocorax carbo, great white egret Egretta alba, mute swan Cygnus olor, common shelduck Tadorna tadorna, gadwall Anas strepera, common pochard Aythya ferina, tufted duck Aythya fuligula, pied avocet Recurvirostra avosetta, Eurasian oystercatcher Haematopus ostralegus, whiskered tern Chlidonias hybridus, red kite Milvus milvus, collared dove Streptopelia decaocto, penduline tit Remiz pendulinus and European serin Serinus serinus) was probably mainly caused by impact of the climate change in Europe (Kurlavicius 2006; Zalakevicius 2007).
Other species include ducks (Anas and Aythya gen), and the stork (Cironia ciconio).
La gran mayoria de las especies no detectadas son migratorias de larga distancia o locales (25 especies), muchas de ellas apenas vistas una o dos veces a lo largo de los anos, como son los patos del genero Aythya, halcones migratorios del genero Falco, dos especies de Coccyzus, varios Scolopacidae y Charadriidae, etc.
On the ulna, the scar of the anterior articulate ligament and ridges around the impression of the brachialis anticus are much more similar to Aythya than to species of Anas.