Vol. XVI 



iqo 



^"H Caj^y, Birds of the Black Hills. 233 



9. Accipiter velox. Sharp-siiinxed Hawk. — Said to be abundant, 

 and veiy destructive to poultry in fall, winter and spring. 1 found a nest 

 in one of the canons back of the ranch on June S, 1S99, which contained 

 two fresh eggs. The parent birds were shy, but frequently uttered their 

 alarm notes. The nest was typical of the species, about thirty feet up in 

 a pine. Before leaving the nesting-site I secured both of the old birds. 

 Upon visiting the nest again on June 11, 1900, I found it to be occupied 

 by another pair, and took a fi-esh set of five eggs. 



10. Buteo borealis. Red-tailed Hawk. — Seen but once, on June 5, 

 1900. 



11. Buteo borealis kriderii. Krider's Red-tail. — I saw but three of 

 these hawks, one in 1S99 and two in 1900. 



12. Buteo swainsoni. Swainson's Hawk.— By far the most abundant 

 of the larger hawks. A common breeder in the timber along the Cheyenne 

 River, as it is along the smaller streams. 



13. Aquila chrysaetos. Golden Eagle. ^ Fairly common throughout 

 the region. I saw several old nests in the most inaccessible places on 

 the canon walls, and a ranchman told me of a pair that were then (June 8, 

 1899) nesting near the ranch, thirty miles southeast of Newcastle, but I 

 did not have time to visit the nest. 



14. Falco sparverius. American Sparrow Hawk. — Common 

 breeder throughout the region. Exceeds all the other hawks in point of 

 numbers. Nesting appeared to be just commencing on June 9, 1900. 



15. Asio wilsonianus. American Long-eared Owl. — A pair of 

 these owls had a nest about thirty feet up in a large pine in one of the 

 canons, and when I visited the site, on June 3, 1900, the nest contained 

 young birds. 



16. Nyctala acadica. Saw-whet Owl. On June 11, 1900, while walk- 

 ing down the rocky bed of a deep canon, three of these little owls flushed 

 from the thick top of a small cedar, where they had been taking their 

 noonday siesta, and alighted farther down the canon. I secured one of 

 them, which proved to be an immature bird, with the breast and belly of 

 a deep fawn color. 



17. Megascops asio maxwelliae. Rocky Mountain Screech Owl. — 

 I saw a Screech Owl in the heavy timber which was probably of this 

 variety. 



18. Bubo virginianus. Great Horned Owl. — Two young were 

 killed near Soper's Ranch, thirty miles southeast of Newcastle, on June 

 13, 1900. 



19. Speotyto cunicularia hypogsea. Burrowing Owl. — Common in 

 prairie dog towns. 



20. Ceryle alcyon. Belted Kingfi.sher. — Sweet's Ranch, six miles 

 southeast of Newcastle — one individual on the sawmill pond. 



21. Dryobates villosus hyloscopus. Cabanis's Woodpecker. — Fre- 

 quently seen in the canons. 



22. Dryobates pubescens medianus. — Downy Woodpecker. — In 

 same situations as last. 



