44 



Proceedings of the 



Six species are more abundant, as breeders, to the southward : 



325. Turkey Vulture. 

 327. Swallow-tailed Kite. 

 365. Barn Owl. 



Naturally, most of our breeding birds are distributed along the 

 same parallels of latitude as those which cut Nebraska, and the 

 centers of abundance are either to the eastward or westward. In 

 enumerating these forms those whose range extends rather more 

 to the north or to the south of these parallels are indicated by the 

 letters N or S, respectively, in parentheses. To the eastward are 

 the following: 



