Found 2 items, similar to Aythya Americana.
English → English (WordNet) Definition: Aythya americana Aythya americana n : North American diving duck with a gray-and-black body and reddish-brown head [syn: redhead]
English → English (gcide) Definition: Aythya Americana Redhead \Red"head`\ (-h?d`), n. 1. A person having red hair. [1913 Webster] 2. (Zo["o]l.) (a) An American duck (Aythya Americana) highly esteemed as a game bird. It is closely allied to the canvasback, but is smaller and its head brighter red. Called also red-headed duck. American poachard, grayback, and fall duck. See Illust. under Poachard. (b) The red-headed woodpecker. See Woodpecker. [1913 Webster] 3. (Bot.) A kind of milkweed (Asclepias Curassavica) with red flowers. It is used in medicine. [1913 Webster]