Cassin's Sparrow

Peucaea cassinii


About the Author(s)

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John B. Dunning, Jr., is a professor of wildlife ecology in the Department of Forestry and Natural Resources at Purdue University. He received a B.S. from Kent State University, Ohio, and a Ph.D. from the University of Arizona, Tucson. He has studied the impact of human land use on bird populations in the southwestern, southeastern, and Midwestern United States. Most recently he has been studying the effects of management activities on Midwest forest bird communities. A bird bander since 1981, he has published reference handbooks on avian body masses. E-mail:

Richard K. Bowers, Jr., has a B.S. in wildlife ecology from the University of Arizona, Tucson. While at the University of Arizona, he studied the life histories of the Buff-breasted Flycatcher, and Cassin's and Botteri's sparrows. His interest in southwestern birds was sparked while he was growing up at Fort Huachuca, Arizona. He is a wildlife photographer and nature tour leader. His photographs have appeared in National Geographic, Scientific American, The New Yorker, Birder's World, and many other publications. E-mail:

Sherman J. Suter has retired from being a book review editor for Science. He has an A.B. in geology from Pomona College, a M.S. in ecology and evolutionary biology from the University of Arizona, and a Ph.D. in Evolutionary Biology from the University of Chicago. His past research has included such disparate topics as the geometry and dynamics of foreland thrust belts, phylogenetic analyses of irregular echinoids, and patterns and causes of the Permian extinctions. His avocational interest in avian identification, distribution, and ecology date from childhood experiences in the chaparral of the Hollywood Hills. These interests have consumed much of his time since his banding and field experiences with the Maryland Ornithological Society in the late 1970s.

Carl E. Bock is professor emeritus of Environmental, Population, and Organismic Biology at the University of Colorado, Boulder. He received a B.A. and Ph.D. in zoology from the University of California at Berkeley. He is a student of grasslands and grassland birds of the American West. E-mail:

Recommended Citation

Dunning, J. B., Jr., R. K. Bowers Jr., S. J. Suter, and C. E. Bock (2018). Cassin's Sparrow (Peucaea cassinii), version 2.0. In The Birds of North America (P. G. Rodewald, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA.