The birds of the Republic of Panama.

Washington: Smithsonian Institution, 1965-1984.
Octavo, four volumes, 483 pp. text illustrations.

Part one: Tinamidae (tinamous) to Rynchopidae (Skimmers). Part two: Columbidae (Pigeons) to Picidae (Woodpeckers). Part three: Passeriformes, Dendrocolaptidae (Woodcreepers) to Oxyruncidae (Sharpbills). Part four: Passeriformes, Hirundinidae (swallows) to Fringillidae (finches).