A year-round resident of the lower Texas Gulf Coast the black-bellied whistling duck (Dendrocygna autumnalis) is found as far inland as San Antonio. Known for its high-pitched whistling call, males and females are identical in appearance, body rust-brown with a black belly and tail. The face is gray, with a white ring around the eye, and a bright red bill and legs. In flight, the bird's white wing-patch is visible as a stripe.
