![](http://www.alamy.com/thumbs/6/0D6B4998-4A7E-4608-BFB5-8AC9108F2070/2PJRAJA.jpg)
Chorus frog (Pseudacris sierra) calling and vocalizing with an inflated throat sac from a vernal pond in Santa Calra county, California.
Size: 4201px × 2801px
Location: California, USA
Photo credit: © Anton Sorokin / Alamy / Afripics
License: Licensed
Model Released: No
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