Green-winged Teals breed throughout most of Canada, Alaska, Maine, N. Dakota, Minnesota, and Northern Michigan. Their wintering range includes the western United States, Mexico, and the southern United States. 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 crescent spanning from one eye, around the back of the head, to the other eye. The sides and back are actually marked with tiny black and white stripes, although they appear grey. Their wings and tail are a tannish-brown color, 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.