364 University of California Publications in Zoology. [Vol. 7 



Three nests were found, two at Big Creek Ranch, June 20, 

 and the other at an altitude of 6500 feet on a sidehill in Big 

 Creek Canon, June 26. The first nest contained one fresh egg. 

 the second was in process of construction, and the third held 

 two eggs. 



Cathartes aura septentrionalis Wied 



Turkey Vulture 



Observed at rather long intervals flying about over the open 

 desert or in the vicinity of the foothills. A badger carcass at- 

 tracted several of the scavengers to the neighborhood of the 

 camp on Leonard Creek (6500 feet). No specimens taken. 



Circus hudsonius (Linnaeus) 



]\Iarsh Hawk 



An immature female specimen (no. 9314) was shot July 21 

 at Soldier Meadows Ranch. 



Accipiter velox (Wilson) 



Sharp-shinned Hawk 



A few noted in the lower parts of the mountains, usually 

 along some stream. 



On Leonard Creek August 5 a fully feathered juvenal and 

 an adult were seen in a grove of aspens. From time to time 

 the young one uttered an exceedingly plaintive jay-like begging 

 note, which the parent answered. No examples of the species 

 were preserved. 



Buteo borealis calurus Cassin 



Western Red-tail 



Noted only in the mountains, for the most part in their higher 

 portions. 



Two red-tails were observed flying about in the vicinity of 

 some cliffs at an altitude of 6000 feet on Alder Creek. 



A nest, probably one that had belonged to this pair, was 

 found fifteen feet above the ground on a cliff near the stream. 

 It rested on a shelf formed by a large outcropping of granite, 



