New York Zoological Society. 
GREEN TREE FROG (Hyla cinerea). Length: 2 inches. Range: Southeastern United 
States. 
TREE FROGS 
Tree frogs are renowned for their loud but not unpleasant trillings, which 
keep country nights alive with sound. The grooved and sticky pads on their 
feet enable them to perch effectively on the branches and leaves of trees. 
Virtually all of the one hundred and fifty species of the tree frog family 
are either American or Australian, but a few varieties are distributed in 
other parts of the globe according to Noble’s Biology of the Amphibia. 
The misnamed European tree frog is found in Asia as well as Europe. 
Its smooth, shiny back is grass-green, and the granular underparts are 
yellowish-white, turning pinkish on the thighs. When a fly or other insect 
settles within sight, this frog will leap fearlessly after its prey from any 
height, breaking its fall by grasping at leaves. The giant of tree frogs is a 
Haitian variety, which often reaches five inches in length. 
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