Population dynamics of the California spotted owl (Strix occidentalis occidentalis): a meta-analysis.
Washington D C: American Ornithologists' Union, 2004. Octavo, illustrations, softcover. American Ornithologists' Union Monograph number 54. More
Washington D C: American Ornithologists' Union, 2004. Octavo, illustrations, softcover. American Ornithologists' Union Monograph number 54. More
Washington: Smithsonian Institution Press, 1980. Octavo, paperback, photographs. More
London: Collins, 1988. Small folio, colour plates, very good copy in dustwrapper. More