A22 Scott on i/ie Birds of Arizona. [October 



56. Cathartes aura. Turkey Vulture. — Rather common at the lower 

 altitudes throughout the year, but migratory in the Catalina region, where 

 I have not met with it above 4000 feet in winter, and it is rare 

 even at that altitude at that season. I noted it in the pine woods as rare 

 late in April, 1SS5, and took a nest containing two fresh eggs in the oak 

 region of the Santa Catalinas, altitude 5000 feet, May 2, 1SS5. 



57. Circus hudsonius. Marsh Hawk. — My records are from about 

 Tucson in the fall, winter, and early spring, and also from the San Pedro 

 River in January, 1886. 



58. Accipiter velox. Sharp-shinned Hawk. — Common during the 

 fall migration, from September 25 until the middle of November in the oak 

 region of the Santa Catalina range. Pine region of the Catalina Moun- 

 tains, one seen on November 27, 1884. San Pedro River, March i, 1885, 

 a few noted. Pines of Catalinas, 3d-8th November, 1885, several seen. 

 San Pedro River, 26th-29th January, 1886, two noted. It was common 

 in the fall of 1882 on Mineral Creek. These are all my notes in regard to 

 this species. 



59. Accipiter cooperi. Cooper's Hawk. — Common. Resident and 

 breeds in the oatc region of the Catalina Mountains. But most abundant 

 during the fall migration, which begins late in September. I have found 

 two nests in this locality', both containing young just hatched. They 

 were taken on June 9 and 11, 1885, and both were built in cottonwood 

 trees, about sixty feet from the ground, and near springs. 



I also found the birds common on Mineral Creek in August, 1S82, and 

 have records of its being seen during the several visits I have made to the 

 pine region of the Santa Catalina Mountains. 



60. Parabuteo unicinctus harrisi. Harris's Hawk. — Mr. Brown has 

 taken this species on a single occasion near Tucson. 



61. Buteo borealis calurus. Western Red-tail. — Resident and 

 breeds abundantly throughout the entire region. Though many breed 

 along the w-ater courses, selecting generally a high cottonwood or sj-ca- 

 more, I have found them nesting quite as commonly in the low mesquites, 

 miles from any water. In these cases the nests are not more than twenty 

 and often as low as ten feet from the ground, and I found a nest once but 

 seven feet from the ground. Not infrequently, too, I have seen the nests 

 placed in a giant cactus where the lowest arms branch from the main 

 trunk. On the San Pedro slope of the Santa Catalina range at an altitude 

 of 3500 feet on March 12, 1885, I took three eggs, which had been incubated 

 for at least a week, from a nest situated in a mesquite tree rather less than 

 ten feet from the ground. The only instance where I have met with the 

 very dark phase of this subspecies was near my house. It is No. 1130, $ . 

 and was taken on the nth of October, 1S84. The specimen is now in the 

 collection of the American Museum of Natural History in New York. 



On one occasion in 1S83 I took a nestling which I kept for some 

 eighteen months. The bird was a male, I think, and on moulting in the 

 spring of 18S4, when a year old, it assumed the full breeding plumage 

 with clear red tail. 



