It is intermediate in appearance between the female mallard and the American black duck. Salvadori suggested it was related to the Pacific black duck. The creek also is a large habitat of native birds including the pacific black duck. Wombarra is an Aboriginal term meaning "Black Duck". West African black duck or Ethiopian black duck. This early Daffy is less anthropomorphic and resembles a normal black duck. The company was acquired by software company Black Duck in November 2010. Source Rookie of the Year, a title awarded by Black Duck Software to open-source projects. The American black duck is endemic to eastern North America. On 18 July 2014, Ohloh became Black Duck Open Hub. The remainder of the bird looked like a male Pacific black duck with lighter underwings. The American black duck is an omnivorous species with a diverse diet. The Pacific Black Duck is mainly vegetarian, feeding on seeds of aquatic plants. The native Pacific black duck ("Anas superciliosa") eats the seeds. The American black duck (Anas rubripes) is a large dabbling duck in the family Anatidae.