A systematic study of the Cooper Ornithological Club
Subtitle: A sketch of evolutionary development with illustrations and descriptions of type specimens and accounts of the species and subspecies, with special regard to the life histories and ecologic niches of all the described forms
Published: 1929
Place of publication: San Francisco
Language: eng
Number of pages: 78
Subjects: Birds; Societies
Notes: Cover title: The C.O.C, 1893-1928. A history by Harry S. Swarth.

"Published at the Fourth Annual Meeting of the Cooper Ornithological Club, San Francisco, Calif., May, 1929."