HAWKS ii 



Sharp-shinned by her larger size, but the male is not 

 appreciably larger than a female Sharp-shin. 



The nest is built in a tree 25-50 feet up. The bluish 

 white, rarely spotted eggs are laid in late April or early 

 May. 



GOSHAWK 



Astur alricapillus 



The adult is blue-gray above with a darker crown and a white 

 line over the eye. The underparts are finely and beautifully 

 marked with gray and white. Young birds resemble the young 

 of Cooper's Hawk, but are much larger. L., male, 22 ; female, 24. 



Range. North America, nests chiefly north of the United 

 States and winters southward, usually rarely, as far as Virginia. 



Washington, casual in winter. Ossining, rare W. V„ Oct. 10- 

 Jan. 14. Cambridge, irregular and uncommon W. V. SE. 

 Minn., W. R., Nov. 5-Apl. 4. 



Like its smaller relatives the Sharp-shin and Cooper's 

 Hawks, this powerful raptor is a relentless hunter of birds. 

 It is particularly destructive to Ruffed Grouse. For- 

 tunately it does not often visit us in numbers. It nests in 

 trees, laying 2-5 white eggs, rarely marked with brownish, 

 in April. 



J( RED-TAILED HAWK 

 Buteo borealis borealis. Case 1, Figs. 5, 6; Case 3, Fig. 13. 



This, the largest of our common Hawks, is a heavy-bodied 

 bird with wings which when closed, reach nearly to the end of the 

 tail. The adult has the tail bright reddish brown with a narrow 

 black band near the tip. The immature bird has the tail rather 

 inconspicuously barred with blackish, and a broken band of 

 blackish spots across the underparts. L. male, 20; female, 23. 



Range. Eastern North America, migrating only at the northern 

 limi t, of its range. There are several races, Krider's Red-tail, 

 a paler form inhabiting the great Plains, and Harlan's Hawk, 

 a darker form with a mottled tail, the lower Mississippi Valley. 



Washington, common W. V., rare S. R. Ossining, common 

 P. R., less common in winter. Cambridge, rare T. V., locally 

 W. V., Oct. 10-Apl. 20. N. Ohio, common P. R. Glen Ellyn, 

 P. R., not common, chiefly T. V. SE. Minn., common S. R., 

 Mch. 2. 



