The above photo shows a male bird. Their range is in central north America. Blue-winged teal are generally the first ducks south in the autumn and the last north in the spring. Nesting habitat includes wetland areas within grasslands, such as shallow marshes, flooded ditches, and temporary ponds. Females change breeding sites from year to year in response to changing wetland conditions and lay an average of 10 eggs. Their diet consists of aquatic plants, seeds and large amounts of aquatic invertebrates found in shallowly flooded wetlands.