Translations:Adventist Youth Honors Answer Book/Nature/Amphibians/33/en

9. Identify two species of frogs by their sound or imitate the sounds of two different species of frogs.

Here are the calls of three frogs.

European toad (Bufo bufo)	Spring Peeper (Pseudacris crucifer)	Big-eyed Tree Frog (Leptopelis vermiculatus)
File:Bufo bufo call1.ogg	File:Pseudacris-crucifer-002.ogg	File:Leptopelis vermiculatus call.ogg