DCHP-1 Online
whistling frog Obs. 
the spring peeper, Hyla crucifer, of eastern North America.
- 1833 I have had frequent opportunities of examining this little creature, which is commonly called, by way of distinction, "the whistling frog," but is in reality a toad, of small size, and reddish brown colour.
- 1833 I have had frequent opportunities of examining this little creature, which is commonly called, by way of distinction, "the whistling frog," but is in reality a toad, of small size, and reddish brown colour.