KEYES AND WILLIAMS — BIRDS OF IOWA. 127 



Subgenus ASTUR Lacfpede. 



[B 14, R 433, C 496, U 334-] 

 Accipiter atricapillus (Wils.). American Goshawk. Rare; ob- 

 served only during the winter. 



Genus BUTEO Cuyiek. 



[B 23, R 436, C 516, U 337-] 



Buteo borealis (Grnel.) Red-tailed Hawk. Resident; common. 



The nest is commonly placed near the top of the highest tree in the 



forest, and is often visible more than a mile away. The eggs are laid 



late in March, and are usually two or three — rarely four — in number. 



[B 25, R 439, C y.o, U 339-] 

 Buteo lineatus (Gmel.). Red-shouldered Hawk. Rather common 

 resident in some localities; rare in others. 



[B iS, 19, 22, 28, R 442, C 523, U 342.] 

 Buteo swainsoni JBonap. Swainson's Hawk. Rather common; 

 breeds in central Iowa, and probably in other parts of the State. 



[B 27, R 443, C 524, U 343-] 

 Buteo latissimus (Wils.) Broad-winged Hawk. Not uncommon 

 from April to October. In the proceedings of the United States 

 National Museum, Vol. IX., Mr. Ridgway gives a very interesting de- 

 scription of a melanistic specimen of this species taken at Crystal Lake 

 in Hancock County. 



Genus ARCHIBUTEO Brehm. 



[B 30, 31, R 447, C 525, U 347 a.\ 

 Archibuteo lagopus sancti-johannis (Gmel.) American Rough - 

 legged Hawk. Not uncommon; usually noticed from October to 

 March, in the fields and more open woodland. 



Genus AQUILA Brisson. 



[B 39, R 449, C 532, U 349-] 

 Aquila chrysaetos (Linn.). Golden Eagle. Rare; a fine specimen 

 of this species was shot near Des Moines several years ago. Several 

 were taken in the eastern part of the State last year (1886). 



Genus HALIiEETUS Savionv. 



[b 41, 43, r 451, c 534, u y>2.-\/^& n • 



Haliaetus leutocephalus (Linn.). Bald Eaglet ^tare. Yoynghave 



>en taken at various times, and kept in confinement for two or three 



been taken at various times, and kept in jconfinementfor two or three 

 years. ^^^ 



