識別
MERLIN提供
Huge and odd-looking gray gooselike species with long red legs. Note the wispy crest on the back of the head, the bare red face, and a broad dark collar with a thin white collar above it. In flight shows white underwings. Occurs in wetlands, including marshes and lakes where it may gather in big flocks. Has a very loud and far-carrying call, usually delivered in a duet.
MERLIN提供