Animalia > Chordata > Aves > Strigiformes > Strigidae > Strix occidentalis > Strix occidentalis occidentalis

Strix occidentalis occidentalis (California spotted owl)


Adult Weight [1]  1.34 lbs (606 g)
Female Weight [1]  1.42 lbs (646 g)
Male Weight [1]  1.25 lbs (566 g)
Weight Dimorphism [1]  14.1 %

Prey / Diet

Glaucomys sabrinus (northern flying squirrel)[2]
Neotoma fuscipes (dusky-footed woodrat)[2]
Peromyscus californicus (California mouse)[2]
Peromyscus truei (pinyon mouse)[2]
Thomomys monticola (mountain pocket gopher)[2]


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Provided by Center for Biological Diversity via Myxer Author: Monica Bond



Attributes / relations provided by
1GutiƩrrez, RJ, AB Franklin, and WS LaHaye. 1995. Spotted Owl (Strix occidentalis). In A. Poole and F. Gill [eds.], The birds of North America, No. 179. The Academy of Natural Sciences, Philadelphia, PA, and The American Ornithologists' Union, Washington, DC
2General Biology of Major Prey Species of the California Spotted Owl, Daniel F. Williams, Jared Verner, Howard F. Sakai, and Jeffrey R. Waters, USDA Forest Service Gen. Tech. Rep. PSW-GTR-133. 1992. Chapter 10, pp. 207-221
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