Project Noah

Project Noah is a tool to explore and document wildlife and a platform to harness the power of citizen scientists everywhere.

Join Project Noah Today

lesser scaup

Aythya affinis

1 species ID suggestions

Lesser Scaup
Aythya affinis Lesser scaup


Ducks in the northern hemisphere are now going into eclipse plumage, this is the time of year when they do their annual moult and lose all their colourful feathers. You need to look at the shape of the bill, head and body and the colour of the eye. This looks like it might be in the Genus Aythya.

Jeffrey Gray
Jeffrey Gray 4 years ago


Liberia, Guanacaste, Costa Rica

Lat: 10.63, Long: -85.44

Spotted on Jan 17, 2014
Submitted on May 26, 2014

Related spottings

Tufted duck Canvasback Lesser scaup Tufted duck

Nearby spottings

Unknown spotting Green Heron Yellow-crowned Night-heron (juvenile) White faced capuchin