Common Gallinules are dark birds of U.S. marshes and ponds, with a red forehead and bill and a white stripe along each side. Their long toes let them walk across floating plants, and they swim along marsh edges.
An American Coot has a pale, usually white bill and forehead. An adult Common Gallinule has a red bill and forehead and a white stripe along its side.
Why they get mixed upBoth are dark waterbirds on U.S. ponds.