88 BIRDS OF SOUTH DAKOTA 
357. Piczon Hawk (Falco columbarius columbarius.) 
Probably seen only in migration in South Dakota. From 
eleven to twelve inches in length. Male above bluish slate; 
throat usually nearly white; belly light but streaked with 
brown; tail with four dark bands, the wide end one tipped with 
white. Female and young, dark brown above; below buffy and 
more heavily streaked with brown; tail with four or five bands. 
357b. RicHARDSON’s PIGEON Hawk (Falco columbarius richardsoni.) 
This Hawk is not common in the State but probably 
nests occasionally. In size and plumage it clearly resembles No. 
257 but is more of a grayish drab in color, and usually has six 
bands on the tail. 
360. Sparrow Hawk (Falco sparverius sparverius.) 
Abundant over the entire State, nesting in old Woodpecker 
holes, hollow trees, and crevices in the badlands. The smallest 
of our Hawks, measuring not over ten or eleven inches in length. 
The crown of both sexes is bluish slate, usually with a chestnut 
patch. Male: back and tail chestnut with a few black bars on 
back and one wide black bar on tail; wing coverts bluish slate; 
under parts creamy white with black spots. Female: chestnut 
brown above, with many blackish bars on back and tail; below 
whitish, streaked with brown. Its food is chiefly mice, grass- 
hoppers, beetles, and occasionally small birds. 
364. Osprey; Fish Hawk (Pandion haliaetus carolinensis.) 
Rather rare in South Dakota. Crown white streaked with 
black; throat and breast white or streaked with brown; black 
line on sides of neck reaching to eyes. Under parts white; back 
black or blotched with white and brown; legs longer than in 
Hawks; toes open to the base; claws of equal length. The 
plumage is close and oily, which fits it for diving after fish, its 
principal food. 
365. Barn Own (Aluco pratincola.) 
This Owl has been rarely taken except in the southern 
part of South Dakota. Length about eighteen inches; above, 
buff mixed with gray; below, white and tawny usually with 
small black spots;:no ear tufts; eyes black; face disk almost a 
