The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
References
- Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes. 2003. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada
- Banks, R. C., R. W. McDiarmid, and A. L. Gardner. 1987. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada. Resource Publication, no. 166. 79
- BirdLife International 2009. Glaucidium gnoma
- Gill, Frank, and Minturn Wright. 2006. Birds of the World: Recommended English Names. ix + 259
- Heidrich, P., C. Koenig, M. Wink. 1995. Bioacoustics, taxonomy and molecular systematics in American Pygmy Owls. Stuttgarter Beitraege zur Naturkunde Serie a (Biologie)., 534: 1-47.
- Holt, D., J. Peterson. 2000. Northern Pygmy-Owl. Birds of North America, 494.
- Holt, D., R. Kline, L. Sullivan-Holt. 1990. A description of tufts and concealing posture in Northern Pygmy-Owls. J. Raptor Res., 24(3): 59-63.
- The Owl Pages, 2000. "Northern Pygmy Owl" (On-line). Accessed Sept 14, 2000 at http://owlpages.com/species/glaucidium/californicum/.
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