Ferruginous Duck
Aythya nyroca
The breeding male is a rich, dark chestnut on the head, breast and flanks with contrasting pure white undertail coverts. In flight the white belly and underwing patch are visible. The females are duller and browner than the males. The male has a yellow eye and the females have a dark eye.
ID text from Wikipedia, CC BY-SA 4.0
New Zealand Scaup
Aythya novaeseelandiae
The New Zealand scaup is a small, round-bodied diving duck that have dark plumage, but both sexes are easily distinguished. They have black legs and webbed feet for swimming, and they spend a lot of time underwater, where they can also travel considerable distances. They measure around 40 centimetres (16 in) in length and weigh around 695 grams (24.5 oz) for males, and around 610 grams (22 oz) for females. The male has dark black-brown plumage with a striking yellow eye and a dark coloured (greenish) head.
ID text from Wikipedia, CC BY-SA 4.0
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Ferruginous Duck and New Zealand Scaup.