Biodiversity Heritage Library
Observations on some species of the genera Tetrao and Ortyx, natives of North America with descriptions of four new species of the former, and two of the latter genus / by David Douglas.
By: Douglas, David,
Publication info: S.l. :s.n.,1828?
Contributed by: Canadiana.org (archive.org)
Subjects: Birds Grouse Rocky Mountains region Tetraonidae