FLYCATCHERS. 



103 



quite set in, and leaves us in September. Mr. 

 Jesse says he has sometimes missed the species 

 within a fortnight from the time at which the 

 brood have quitted the nest, and expresses his 



SPOTTED FLYCATCHER. 



surprise that such young and tender birds should 

 have strength sufficient to perform their migra- 

 tion. During this its brief sojourn, insects, and 

 especially flies, which constitute its sustenance, 



