The green-winged teal is one of the few ducks that reside year-round on the Chesapeake Bay. In Autumn, resident green-wings are joined by migrating birds, which usually arrive earlier in the season than other migratory waterfowl.
The male green-winged teal is identified by its small size, chestnut head, green eye mask, and green wing-patch.
Female green-wing teal resemble mallards of the same sex, but the teal’s small size helps distinguish them from other dabblers. Female green-winged teal have a gray-blue bill which is smaller when compared to the blue-winged teal female.