Green-winged Teals breed throughout most of Canada, Alaska, Maine, N. Dakota, Minnesota, and northern Michigan. Their wintering range includes the western and southern United States and Mexico. The Teal is the smallest dabbling duck in the Americas. Its bill is narrow and black.
Teals are sexually dimorphic.
Males have a cinnamon colored head with an iridescent green cresent spanning from one eye around the back of the head to the other eye. The sides and back are striped with tiny black and white stripes, although from a distance they appear grey. The wings and tail of members of this species are tannish-brown, with pale yellow feathers along the side of the tail. Their main foods vary from region to region, depending on what is available, but they consist mainly of marine invertebrates and seeds of marine vegetation. Reproduction Green-winged Teals begin courtship between September and November.