Wyoming birds and their value to agriculture
By: by B.H. Grave and Ernest P. Walker. University of Wyoming, June 1, 1913 ...
Contributors: Walker, Ernest P. (Ernest Pillsbury), 1891-1969
Published: 1916
Place of publication: Laramie, Wyoming
Language: eng
Number of pages: 137
Subjects: Birds -- Wyoming.
Notes: First published in 1915 both as a bulletin of the University, and independently, with title: The birds of Wyoming.

"Bird notes. Complete list of the birds of Wyoming ... revised to June 1, 1913": p.[21]-80.

"Bibliography": p.18-19.