Voice: A short (1/2 sec.) rasping or grating sound like that made by rubbing an inflated balloon.
Breeding: Mid-March to late June, in streams and rivers following high water from winter runoff.
Bibliography: compiled by Amy Lind, USDA Forest Service, Pacific Southwest Research Station, Redwood Sciences Lab, 1700 Bayview Drive, Arcata, CA 95521 (707)-825-2946, August 1996.
Brode, J. M., and R. B. Bury. 1984. The importance of riparian systems to amphibians and reptiles. In: Warner, R. E. and K. M. Hendrix, eds. Proceedings of the California Riparian Systems Conference, Pp. 30-36, Univ. of California, Davis.
Bury, R. B. 1967. An analysis of the herpetofauna of Trinity County, California. Unpubl. report, Zoology Department, Univ. of California Berkeley. 182 pp.
Bury, R.B. 1970. A biogeographic analysis of the herpetofauana of Trinity County, California. Journal of Herpetology 4:165-178.
Case, S.M. 1976. Evolutionary studies in selected North American frogs of the genus Rana (Amphibia, Anura). PhD Dissertation, University of California, Berkelcy, California.
Case, S.M. 1978a. Electrophoretic variation in two species of ranid frogs, Rana boylei and R. muscosa. Copeia 1978:311-320.
Case, S.M. 1978b. Biochemical systematics of members of the genus Rana native to western North America. Systematic Zoology 27:299-311.
Drost, C. A., and G. M. Fellers. 1994. Decline of frog species in the Yosemite section of the Sierra Nevada. Cooperative National Park Resource Studies Unit, Univ. of California, Davis. Technical Report No. NPS/WRUC/NRTR 94-02 (UC CPSU TR # 56).
Drost, C.A. and G.M. Fellers. 1996. Collapse of a regional frog fauna in the Yosemite Area of the California Sierra Nevada, USA. Conservation Biology 10:414-425.
Fitch, H.S. 1936. Amphibians of the Rogue River Basin, Oregon. American Midlands Naturalist 17: 634-652.
Fitch, H.S. 1938. Rana boylii in Oregon. Copeia 1938:148.
Fitch, H.S. 1941. The feeding habits of California garter snakes. California Fish and Game 27:2-32.
Fox, W. 1952. Notes on the feeding habits of Pacific coast garter snakes. Herpetologica 8:4-8.
Fuller, D. D., and A. J. Lind. 1992. Implications of fish habitat improvement structures for other stream vertebrates. In: R. Harris and D. Erman, eds. Proceedings of the Symposium on Biodiversity of Northwestern California. Pp 96-104. Santa Rosa, California.
Green, D.M. 1986. Systematics and evolution of western North American frogs allied to Rana aurora and Rana boylei: karyological evidence. Systematic Zoology 35:273-382.
Green, D.M. 1986. Systematics and evolution of western North American frogs allied to Rana aurora and Rana boylei: electrophoretic evidence. Systematic Zoology 35:283-296.
Haertel, J.D. A. Owczarak, and R.M. Storm. 1974. A comparative study of the chromosomes from five species of the genus Rana (Amphibia, Salientia). Copeia 1974:109-114.
Hayes, M. P., and M. R. Jennings. 1986. Decline of ranid frog species in western North America: are bullfrogs (Rana catesbeiana) responsible? J. Herpetol. 20:490-509.
Hayes, M. P., and M. R. Jennings. 1988. Habitat correlates of the distribution of California red-legged frog (Rana aurora draytonii) and Foothill yellow-legged frog (Rana boylii): implications for management. In: R. C. Szaro, K. E. Severson, D. R. Patton, tech. coords. Management of Amphibians, Reptiles, and Small Mammals in North America. Pp 144-158. USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, Gen. Tech. Rep. RM-166, Fort Collins, Colorado.
Hemphill, D.V. 1952. The vertebrate fauna of the boreal areas of the southern Yolla Bolly Mountains, California. PhD Dissertation, Oregon State University, Corvallis, Oregon.
Houser, H., Jr. and D.A. Sutton. 1969. Morphologic and kayotypic differentiations of the California frogs Rana muscosa and Rana boylii. Copeia 1969:184-188.
Jennings, M. R. 1988. Natural history and decline of native ranids in California. In: H. F. De Lisle, P. R. Brown, B. Kaufman, and B. M. McGurty, eds. Proceedings of the Conference on California Herpetology. Pp 61-72. Southwestern Herpetol. Soc., Van Nuys, California.
Jennings, M. R. and M. P. Hayes. 1994. Amphibian and Reptile Species of Special Concern in California. A Report to the California Department of Fish and Game, Rancho Cordova, California. 255 pp.
Kupferberg, S. J. IN PRESS. Hydrologic and geomorphic factors affecting reproduction of the foothill yellow-legged frog (Rana boylii). Ecological Applications.
Lind, A.J. and H.H. Welsh, Jr. 1994. Ontogenetic changes in foraging behavior and habitat use by the Oregon garter snake, Thamnophis atratus hydrophilus. Animal Behaviour 48:1261-1273.
Lind, A.J., H.H. Welsh, Jr., and R.A. Wilson. 1996. The effects of a dam on breeding habitat and egg survival of the foothill yellow-legged frog (Rana boylii) in northwestern California. Herpetological Review 27: 62-67.
Loomis, R. B. 1965. The yellow-legged frog, Rana boylei, from the Sierra San Pedro Martir, Baja California Norte, Mexico. Herpetologica 21:78-80.
Marr, J.C. 1943. Range extension for Rana boylii boylii. Copeia 1943:56.
Moyle, P. B. 1973. Effects of introduced bullfrogs, Rana catesbeiana, on the native frogs of the San Joaquin Valley, California. Copeia 1973:18-22.
Storer, T.I. 1923. Coastal range of yellow-legged frog in California. Copeia 1923:8.
Storer, T.I. 1925. A synopsis of the amphibia of California. University of California Publications in Zoology 27:1-342.
Twitty, V., D. Grant, and O. Anderson. 1967. Amphibian orientation: an unexpected observation. Science 155:352-353.
Van Wagner, T. 1996. Selected life history and ecological aspects of a population of foothill yellow-legged frogs (Rana boylii) from Clear Creek, Nevada City, California. Master's Thesis, California State University Chico.
Zweifel, R. G. 1955. Ecology, distribution, and systematics of frogs of the Rana boylii group. Univ. California Publ. Zool. 54:207-292.
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