76 ZOOLOGY. 



fishing birds behind us, far up on Pit river, around the Klamath lakes, in the Cascade moun 

 tains, on the Columbia and Willamette, we still found the fish hawk, and his more powerful, 

 but less skilful rival, the bald eagle. In the month of August we saw, in the Klamath basin, 

 several pairs of fish hawks feeding their young, which were still in the nest, though, apparently, 

 nearly old enough to leave it. 



In the Cascade mountains we found the fish hawk, where it must have subsisted alone on fish 

 taken from the small, rapid, trout streams; while in other localities it seeks its food in deep 

 anl wide bodies of water. 



STRIX PRATINCOLA. 

 Barn Owl. 



This owl is apparently more abundant on the western coast than in the eastern States, and 

 more common in California than in Oregon. It is more frequently met with about San Fran 

 cisco, San Diego, and Monterey, than any other species. Its habits at the west are similar to 

 those of the eastern owls of the same species, occupying barns, out-houses, churches, &c., and, in 

 the absence of these places of resort, living in hollow trees and holes in cliifs. I found it on 

 San Pablo bay inhabiting holes in the perpendicular cliffs bordering the south shore. It 

 also inhabits the Klamath basin, though apparently not in great numbers. 



BUBO VIRGINIANUS, Var.? 



The Great Horned Owl. 



The great horned owl is one of the most widely distributed of American birds. Though less 

 abundant than in the forests of the eastern States and Mississippi valley, it is still quite 

 common in all parts of California, Oregon, and Washington. The specimen brought in was 

 killed at Fort Realing by Dr. Hammond, TJ. S. A., who, while stationed at that post, very 

 successfully investigated the natural history of the vicinity. I saw other specimens from 

 southern California, and we were sometimes serenaded by its characteristic note while camping 

 in the Cascade mountains. 



BRACHYOTCJS CASSINII. 

 Marsh Owl. 



Found throughout California and Oregon, this species is especially common in the Klamath 

 basin. On the level meadow-like prairies of upper Pit river we found it associated with the 

 marsh hawk (Circus hudsonius) in considerable numbers. They were generally sitting concealed 

 in the grass, and rose as we approached. I was much amused by the movements of one of these 

 owls, at which I had fired unsuccessfully. A large number of hawks (C. hudsonius} and a large 

 dark Buteo rose at the report of my gun, and flew about in circles, filling the air high over my 

 head. The owl joined the crowd, and flew around as high and fast as the best. He was, how 

 ever, evidently looked upon -as an intruder, and when he came near a hawk in his circumvolu 

 tions he was sure to be buffetted ; but as long as I could distinguish him, he was still sailing 

 round among the hawks, badgered by all of them. 



We found the same species again on the shores of Klamath lake and in the Des Chutes basin, 

 among grass and sage bushes. In these localities it is very commonly associated with the 

 burrowing owl, Athene hypugcea. 



