Green-winged teal Anas crecca

Identification Tips:

Adult male alternate:

Adult male basic:

Adult female:

Similar species:

Adult male unmistakable in winter. Females, immature and eclipse males similar to most female ducks, but are very small, short-billed, and have a distinctive wing pattern that is sometimes visible at rest.

Length and wingspan from: Robbins, C.S., Bruun, B., Zim, H.S., (1966). Birds of North America. New York: Western Publishing Company, Inc.