78 



Order CHIROPTERA 



or awnings; In abandoned buildlnj2;s and in chimneys. An adult 

 female produces one or two young in early summer. 



Being larger than most other bats, this kind includes in its 

 diet some of the larger insects, particularly June beetles and 

 click beetles, mayflies, caddisflies, lacewings, and parasitic wasps. 

 It is a late feeder, becoming most active when twilight is fading 

 into darkness. 



In late summer, the big brown bat becomes exceptionally fat; 

 the fat gives a reserve of energy for the hibernation period 

 ahead. This bat winters in caves and buildings; it hangs less 

 often in clusters than does the little brown bat or the Indiana 

 bat. Apparently it is more tolerant of cold than are most other 



Fig. 55. — Big brown bat. 



