The ragged-crested Red-breasted Merganser winters in the USA but breeds farther to the north. The adult male in breeding plumage has a reddish-brown mottled breast, white neck collar, green head, and red eyes. The serrate orange bill is very thin. The back is black and white, and the flanks are gray. The female has an overall gray body, reddish-brown head, and reddish eyes. There is no obvious white chin-patch as in the female Common Merganser. The juvenile is similar to the female but has a white bar across its face. Non-breeding adult males appear similar to females as well.