Is the barred owl displacing the spotted owl in western Washington?
By: by Wayne Frederick Iverson.
Published: 1993
Language: eng
Number of pages: 54
Subjects: Barred owl -- Washington (State); Spotted owl -- Washington (State); Endangered species -- Washington (State)
Notes: Thesis (M.S.)--Western Washington University, 1993.

Includes bibliographical references (leaves 47-50)