The Ornithology of Illinois Volume 1

Nomenclature of North American Birds Chiefly Contained in the United States National Museum

Birds Of The Galapagos Archipelago

Color Standards and Color Nomenclature

He Walks Amongst the Spirits

Manual of North American Birds

The birds of North and Middle America

Bulletin of the United States National Museum Volume 50

Die Nordamerikanische Vogelwelt

Nomenclature of Colors for Naturalists, And, Compendium of Useful Knowledge for Ornithologists (Classic Reprint)