Anas clypeata


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Synonyms for Anas clypeata

freshwater duck of the northern hemisphere having a broad flat bill

References in periodicals archive ?
erythrorhynchus 1 Anas clypeata 1 Aythya affinis 3 Bucephala albeola fossilis 3 Oxyura jamaicensis 16 Anatid 4 Calipepla californica 3 Rallus limicola 2 Fulica americana 11 Phalaropus lobatus 1 Geococcyx californianus 2 Apheloocoma califbrnica 1 Vireo sp.
Some filter-feeders also dive: shovelers (Anas clypeata) are specialists adapted to shallow water rich in zooplankton.
A total of 14 species were inventoried during the study period: White-headed Duck, Garganey Anas querquedula, Eurasian Teal Anas crecca, Tufted Duck Aythya fuligula, Ferruginous Duck, Mallard Anas platyrhyncos, Northern Shoveler Anas clypeata, Gadwall Anas strepera, Eurasian Wigeon Anas penelope, Northern Pintail Anas acuta, and Common Pochard Aythya ferina (Anatidae); and Common Coot Fulica atra, Common Moorhen Gallinula chloropus, and Purple Swamphen Porphyrio porphyrio (Rallidae).
platyrhynchos and Aythyra americana and too slender for Anas clypeata. A well defined brachial depression separates this bone from those of Aythya americana..
Scolopax rusticola reported as local resident is Passage migrant: Anas clypeata, Anas penelope, Aythya ferina, Aythya fuligula, Hippolais pallida, Larus ridibundus and Tadorna ferruginea that were reported to be winter migrants were found to be summer migrants whereas Columba oenas and Montifringilla nivalis reported to be summer migrant, were determined to be local residents.
The species included in the analysis are the following: Anas acuta, Anser albifrons, Anser anser, Anser brachyrhynchus, Anas clypeata, Anas crecca, Anser erythropus, Anser fabalis, Aythya ferina, Aythya fuligula, Aythya marila, Aythya nyroca, Anas penelope, Anas platyrhynchos, Anas querquedula, Anas strepera, Branta bernicla, Bucephala clangula, Branta leucopsis, Branta ruficollis, Cygnus columbianus, Cygnus cygnus, Clangula hyemalis, Cygnus olor, Mergellus albellus, Marmaronetta angustirostris, Melanitta fusca, Mergus merganser, Melanitta nigra, Mergus serrator, Netta rufina, Oxyura leucocephala, Polysticta stelleri, Somateria mollissima, Tadorna ferruginea, Tadorna tadorna.
Las tres especies numericamente mas importantes fueron el pato tepalcate (Oxyura jamaicensis), la gallareta gris (Fulica americana) y el pato cucharon (Anas clypeata).
The species most affected were coots (Fulica atra) (26.9%), shovelers (Anas clypeata) (25.1%), and mallards (Anas platyrrhynchos) (13.8%).
As many as 162+-17.71 individuals of six species of ducks and 440+-94.51 individuals of other 23 species of water birds were recorded with black coot (Fulica atra) and shoveler (Anas clypeata) as the most abundant species.