Birds of the Rocky Mountains
Subtitle: with particular reference to national parks in the northern Rocky Mountain region
By: by Paul A. Johnsgard.
Publisher: Colorado Associated University Press
Published: 1986
Place of publication: Boulder, Colo
Language: eng
Number of pages: 504
Subjects: Birds -- Rocky Mountains.; National parks and reserves -- Rocky Mountains.
Notes: Bibliography: p. 417-462.
Includes index.