CALLS AND MUSIC 



21 



whicli it uses very frequently, and has tlie liabit alse 

 of '' squeaking out " as it leaps into the water when 



Fig. 13. — The bullfrog [Eana catesbiana). 



disturbed. The spadefoot toad croaks fearfully in a 

 deep rasp — as if his vocal apparatus needed oiling; 

 and the voice of the 

 bullfrog (Fig. 13)— 

 especially when quiet 

 and reflective in the 

 later season — is de- 

 scribed as " jug-er- 

 rum," with a deep 

 really musical ring at 

 times. Again it may 

 be a series of very ex- 

 plosive " chee-ungs " 



very far apart; but Fig. 14.-Tree-toadT^?a fe!^/co/or). 



