Snow Geese are migratory geese that gather in large winter flocks in U.S. farm fields and marshes. White Snow Geese have black wingtips and pink bills. Dark-bodied Snow Geese have white heads and are often called blue geese.
A Snow Goose is larger, with a longer neck and bill and a broad dark stripe along the bill. Ross's Goose (Anser rossii) looks compact and has a short, stubby bill with little of that dark stripe.
Why they get mixed upWhite birds of both species have black wingtips and often flock together.