23'2 



THE CHANGEABLE TREE FROG. 



is a noisy creature. It has a liquid note, sounding like " el " 

 frequently repeated, and then ending with a sharp, short 



monosyllable. 



It leaves its arborial habitation during the breeding season, 



TRKK FROG. 



and makes its way to the nearest pools, where it joins in the 

 concerts of its relatives. 



It hibernates during winter, burrowing beneath the dam]: 



ground. 



