Vocalization

Rana muscosa and Rana sierra have slightly different calls, but calls of both species are short and rasping, often accelerating and rising in pitch at the end.

The following underwater recording (29 seconds long) is the sound of a single R. sierrae male calling, with a Pacific treefrog (Pseudacris regilla) calling in the background. The recording was made by Tim Ziesmer in Yosemite National Park, and is included on the CD, "Frog and Toad Calls of the Pacific Coast", produced by Carlos Davidson.

If you don't see a media player immediately above this sentence, click here (or right-click to open in a new window) to hear the call.