Lake Duck vs White-headed Duck

Lake Duck

Oxyura vittata

Large643 gWetland

The lake duck grows to 36–46 centimetres (14–18 in). Females weigh 510–700 grams (18–25 oz) and males 600–850 grams (21–30 oz). Males can be distinguished from Andean duck (Oxyura ferruginea), a similar species, by being smaller and having a flatter head.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Leonel Roget · CC BY 4.0

White-headed Duck

Oxyura leucocephala

Large661 gWetland

Adult males have a grey and reddish body, a blue bill and a largely white head with a black cap and neck. Adult females have a grey-brown body with a white face and a darker bill, cap, and cheek stripe. Length is 43–48 cm (17–19 in) and weight is 580–750 g (1.28–1.65 lb).

ID text from Wikipedia, CC BY-SA 4.0

Photo: (c) Christoph Moning, some rights reserved (CC BY), uploaded by Christoph Moning · cc-by

Photos and recordings are credited to their authors under the licence shown. Full profiles: Lake Duck and White-headed Duck.