The Green-winged Teal (Anas crecca) is a small duck (10 - 16 inches; wingspan: 24 inches) overall grey with a cinnamon brown head and iridescent green patch through eye to back of head. It has a green speculum. The breast is buff and spotted. The voice is a repeated whistle.

As with many ducks, the preferred habitat is marshes, ponds and lakes. The nest is made in tall grass near water and lined with down. There are 8 to 15 white or creamy buff eggs. The incubation period is from 21 to 23 days. The young fledge in 34 days. There is generally one brood per season.

These ducks feed on seeds, green plant material and sometimes aquatic invertebrates.

Breeding grounds are Alaska, Canada and northwestern U.S. Winters in southern states and along coasts.

Order: Anseriformes | Family: Anatidae | Genus: Anas Linnaeus | Species : Anas crecca Linnaeus