204 
265 
266 
207 
268 
269 
270 
271 
272 
273 
A. O U. 
NO. 
(3350) 
(331) 
(332) 
LIST OF THE BIRDS OF EASTERN NORTH AMERICA. 355 
Genus ROSTRHAMUS. Lesson. 
ROSTRHAMUS SOCIABILIS. (VieILL.) Everglade Kite. 
Central America and eastern South Amerjca; Common in South Florida 
where it breeds. 
Genus CIRCUS. LackprEpe. 
CIRCUS HUDSONIUS. (Lixyn.) Marsh Hawk. 
North and Central America; breeding throughout its range; one of 
the most common species in eastern United States; frequenting 
marshes. 
Genus ACCIPITER. Briss. 
SuBGENUS ACCIPITER. 
ACCIPITER VELOX. (Wits.) Sharp-shinned Hawk. 
North America; breeding throughout its range; in winter south to 
Mexico and Central America; common in eastern United States. 
ACCIPITER COOPERI. (BonaAp.) Cooper’s Hawk. 
North America and Mexico; breeds throughout its range; common in 
eastern United States. 
SUBGENUS ASTUR. LAChPEDE. 
ACCIPITER ATRICAPILLUS. (Wits.) American Goshawk. 
Greater portion of North America, north of the Middle States; breeds 
from northern border of United States northward. 
Gents PARABUYEO. Rivew. 
PARABUTEO UNICINCTUS HARRISI. (Aup.) Harris’s Hawk. 
Western species, which oecurs in Louisiana, 
Genus BUTEO. Cuvier. 
BUTEO BUTEO. (Lixn.) European Buzzard. 
European species; once taken in United States; Michigan, one record. 
BUTEO BOREALIS. (GuEL.) Red-tailed Hawk. 
Eastern North America and Canada; south to Mexico; breeds nearly 
throughout its range. 
Buteo borealis kriderii. Hooves. Krider’s Hawk. 
Western race, which occasionally occurs as far east as Illinois; differs 
in being much paler; more white in the plumage; underparts, 
faintly streaked. 
Buteo borealis calurus. (Cass.) Western Red-tail. 
This race has been recorded from Illinois; its true range is west of the 
Rocky Mountains; it differs in being much darker than borealis, 
and shows more dusky and rufous brown in the plumage; some 
specimens are almost entirely black, with breast dark reddish 
brown. 
