California red-legged frog (<i>Rana draytonii</i>), adult
Ellen Blonder
1980
Verner, Jared, and Allan S. Boss, technical coordinators. 1980. <i>California Wildlife and their Habitats: Western Sierra Nevada.</i> Gen. Tech. Rep. PSW-37,  Forest Service, Pacific Southwest Forest and Range Experiment Station,  U.S. Dept. of Agriculture, Berkeley, Calif. <a rel="nofollow" class="external text" href="https://www.fs.usda.gov/treesearch/pubs/27514">USDA link</a> <a rel="nofollow" class="external text" href="https://catalog.hathitrust.org/Record/007407807">HathiTrust</a>