The birds of North and Middle America; a descriptive catalog of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean Sea, and the Galápagos Archipelago. (U.S. National Museum. Bulletin, 50)
The birds of North and Middle America; a descriptive catalog of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean Sea, and the Galápagos Archipelago.
pt.11. Family Cathartidae--The American vultures. Family Accipitridae--The hawks, eagles, kites, Harriers and old world vultures. Family Pandionidae--...