S. haematina The bluebills are the genus Spermophaga of the estrildid finches family. These birds are found in tropical Africa. They are gregarious seed eaters with short, thick, blue and red bills. All have plumage which is mainly crimson and black or dark grey. The members are: ... Found on http://en.wikipedia.org/wiki/Bluebill
Blue'bill` noun (Zoology) A duck of the genus Fuligula . Two American species ( F. marila and F. affinis ) are common. See Scaup duck . Found on http://www.encyclo.co.uk/webster/B/70