Ecology of the great grau owl
By: Evelyn L. Bull and Mark G. Henjum.
Contributors: Henjum, Mark G.; Pacific Northwest Research Station (Portland, Or.)
Series: General technical report PNW ;; GTR-265; General technical report PNW ;; 265.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 1990
Place of publication: [Portland Or.]
Language: eng
Number of pages: 39
Subjects: Great gray owl -- Ecology.
Notes: Includes bibliographical references (p. 37-38).
Cover title.
Distributed to depository libraries in microfiche.
"September 1990."