The Eurasian Coot (Blässhuhn) is mostly black with a white beak and "forehead shield". If you hear someone say "bald as a coot" they're referring to that shield. They have very unique foot webbing and beautiful red eyes. Coot are also referred to as water chickens. Click on the images below for higher resolution versions.
See also: Mandarin Duck - Mandarinente
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