YELLOW WARBLER 



hazel-bush close by the old blackberry vines, 

 until a vigorous shaking of the branches 

 disturbed them. 



It is really almost as profitable to prowl 

 through the clearings by moonlight as in the 

 daytime, if one is sufficiently familiar with 

 birds to recognize species by their size, form, 

 and flight ; for up from the ferns, out of the 

 bushes, and sometimes from the top of fence- 

 posts, one may flush these little sleepers and 

 discover where they spend their nights. 



^7 257 



