Checklist of the Birds of Northern South America : An Annotated Checklist of the Species and Subspecies of Ecuador, Colombia, Venezuela, Aruba, bonair

This checklist has been recognizes 2,236 species of birds in Northern South America. Each species is numbered, and the numbers correspond to those used in the "Field Guide to the Birds of Northern South America" by the same authors. All subspecies occurring in northern South America are listed.