Two New Owls from Arizona: With Description of the Juvenal Plumage of Strix Occidentalis Occidentalis (Xantus)

Revision of the Avian Genus Passerella: With Special Reference to the Distribution and Migration of the Races in California, Volume 21

A Study of a Collection of Geese of the Branta Canadensis Group from the San Joaquin Valley, California: Volume 12

A Study of a Collection of Geese of the Branta Canadensis Group from the San Joaquin Valley, California

Report on a Collection of Birds and Mammals from Vancouver Island: Volume 10

Birds and Mammals of the 1909 Alexander Alaska Expedition: Volume 7

Report on a Collection of Birds and Mammals from Vancouver Island

Birds of the Huachuca Mountains, Arizona: Issue 4

Birds and Mammals of the Stikine River Region of Northern British Columbia and Southeastern Alaska: Volume 24

An Account of the Birds and Mammals of the San Jacinto Area of Southern California with Remarks Upon the Behavior of Geographic Races on the Margins of Their Habitats: Volume 10

The Mole of Southern California: Volume 10

The Pocket Gopher of the Boreal Zone on San Jacinto Peak

Birds of the Papago Saguaro National Monument and the Neighboring Region, Arizona

An Account of the Birds and Mammals of the San Jacinto Area of Southern California with Remarks Upon the Behavior of Geographic Races on the Margins of Their Habitats: Volume 10

Birds of the Papago Saguaro National Monument and the Neighboring Region, Arizona

Birds of the Papago Saguaro National Monument and the Neighboring Region, Arizona

A List of the Land Birds of Santa Cruz County, California: Issues 1-4

A List of the Land Birds of Santa Cruz County, California: Volumes 1-5

A Distributional List of the Birds of California: By Joseph Grinnell, Issues 8-11

A Distributional List of the Birds of British Columbia: Issue 17