14 EAGLES 



ing whistle. It nests in late April and early May, laying 

 2-4 whitish eggs marked with brown. 



ROUGH-LEGGED HAWK 

 Archibuteo lagopus sancti-johannis 



Legs feathered to the toes; basal half of tail white; belly 

 black. Some individuals are wholly black. L., male, 21; 

 female, 23. 



Range. Breeds in northern Canada; usually rare and irregular 

 in the northern U. S., from November to April. 



Washington, rare and irregular W. V. Ossining, casual. 

 Cambridge, T. V., not common, Nov.-Dec; Mch.-Apl. N. 

 Ohio, not common W. V., Nov. 20-Apl. 3. Glen Ellyn, quite 

 common W. V., Oct. 12-Apl. 30. SE. Minn., W. V., Oct. 15- 

 Mch. 



Frequents fields and marshes, where it hunts to and fro 

 after mice, which form its principal fare. 



GOLDEN EAGLE 



Aquila chrysaetos 



With the Bald Eagle, largest of our raptorial birds; with a 

 general resemblance to the young of that species, in which the 

 head and tail are dark, but with the legs feathered to the toes. 

 L., male, 32J; female, 37^. 



Range. Northern parts of the northern Hemisphere; in the 

 United States, rare east of the Mississippi. 



Washington, rare W. V., Ossining, A. V. Cambridge, 1 record. 

 N. Ohio, rare W. V. SE. Minn., P. R. 



The Golden Eagle is so rare in the eastern United States 

 and its general resemblance to a young Bald Eagle is so 

 close, that only an experienced ornithologist could con- 

 vince me that he had seen a Golden Eagle east of the Mis- 

 sissippi. 



% 



BALD EAGLE 



Halimetus leucocephalus leucocephalus. Case 3, Fig. 11 



When immature the head and tail resemble the body in color, 

 and at this age the bird is sometimes confused with the mor« 



