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Id | 1429 | ||||||||||||
Family | Ducks, Geese and Waterfowl ~ Ænder, Gæs og Vandfugle ~ Patos, Gansos, Cisnes y Mergos (Anatidae) | ||||||||||||
Species |
Ring-necked Duck (Aythya collaris) Halsbåndstroldand ~ Pato Pico Anillado ~ Ringand |
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Subspecies | monotypic | ||||||||||||
Locality |
Parque Héroes (Aguascalientes), Mexico
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Date | 2011-12-04 | ||||||||||||
Sex, Age, Comment | Adult males. The markings on the bill are rather alike and characteristic for the males of the species. Notice the different head shape, where the one behind shows the classic profile with the top point at the rear of the head. The eye color is bright yellow orange on old males, but variation occurs as it is obvious here. The brownish feathers on the flank of the front bird, are reminiscents of the eclipse/alternate plumage of the adult male as I see it, rather than being an indication of a young bird. | ||||||||||||
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Same bird | |||||||||||||
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