What is "white-winged coot"

Scoter \Sco"ter\, n. [Cf. Prov. E. scote to plow up.] (Zo["o]l.) Any one of several species of northern sea ducks of the genus Oidemia.

Note: The European scoters are Oidemia nigra, called also black duck, black diver, surf duck; and the velvet, or double, scoter ( O. fusca). The common American species are the velvet, or white-winged, scoter ( O. Deglandi), called also velvet duck, white-wing, bull coot, white-winged coot; the black scoter ( O. Americana), called also black coot, butterbill, coppernose; and the surf scoter, or surf duck ( O. perspicillata), called also baldpate, skunkhead, horsehead, patchhead, pishaug, and spectacled coot. These birds are collectively called also coots. The females and young are called gray coots, and brown coots.

The white-winged coot (Fulica leucoptera) is a species of bird in the family Rallidae. At in length, it is a mid-sized coot. It is found in swamps and at lakes in southern South America, including the Falkland Islands, ranging as far north as Bolivia and southern Brazil. Despite its name, most of its wings are dark slaty, though in flight a white trailing edge is visible on the secondaries.