spring peeper, hyla crucifer, singing its mating call
spring peeper, hyla crucifer with its vocal sac inflated performing its mating call
Size: 5000px × 3466px
Photo credit: © Scott Camazine / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: amphibian, behavior, call, frog, hyla, mating, peeper, sac, vertebrate, vocal