Nebraska Ornithologists' Union 



49 



6. Straggling pine timber scattered over the sides of the 



canyons or on the tops and talus slopes of the buttes 

 and ridges. 



7. Deciduous trees and shrubbery in the bottoms of the 



canyons and along the streams. 



8. The "bad lands." 

 V. The Pine ridge region. 



1. The deep canyons, often several hundred feet in depth 



hemmed in by sheer rocky walls and pine-covered 

 talus slopes. 



2. The mixed pine and deciduous tree growth and shrub- 



bery forming a dense cool thicket at the bottoms of 

 the canyons where are cold springs, and, leading 

 away from them, small brooks, which often are lost 

 out in the valley, which belongs to the previous re- 

 gion and is Upper Sonoran. 



V 



In discussing the distribution of Nebraska birds with respect 

 to the regions of the state outlined above, we have first to consider 

 a considerable number which are able to adapt themselves to such 

 a variety of conditions that they find a suitable environment in 

 each of them, in which they are resident during the breeding sea- 

 son. They are as follows :* 



289. Bob-white. Now general; 388. 



formerly Mo. and Pr. 406. 



316. Mourning Dove. 412a. 

 325. Turkey Vulture. 



333. Cooper Hawk. 413. 

 342. Swainson Hawk. 



357b. Richardson Pigeon Hawk. 444. 



Now very rare. 466. 



360. Sparrow Hawk. 488. 

 366. Long-eared Owl. 



373. Screech Owl. 495. 



Black-billed Cuckoo. 



Red-headed Woodpecker. 



Northern Flicker. More 

 common eastward. 



Red-shafted Flicker. More 

 common westward. 



Kingbird. 



Traill Flycatcher. 



Crow. Rare S. and west- 

 ward. 



Cowbird. 



*In the lists which follow these abbreviations are used : Mo., Missouri 

 region ; Pr., prairie region ; S., sand-hill region ; PI., plains region ; P. R'., 

 Pine ridge region. 



