The green-winged teal is the smallest North American dabbling duck. In alternate plumage, green-wing drakes have a cinnamon-colored head with a green eye-stripe, gray back, flanks, and wing with a iridescent green speculum. Hens are brown with a green speculum.
This duck is mainly a migrant and winter visitor. It is an uncommon summer resident and breeder in northeastern Oregon and a rare summer resident west of the Cascades.