56 



Common migrant but has not been taken in summer. Feeds 

 on small birds, mice and insects. Probably beneficial. Note, 

 a shrill scream. 



45. Accipiter cooperi (Bonap.). 

 COOPER'S HAWK. CHICKEN HAWK. 



Coloration as in the preceding. Length, 16-20 inches. 



Common summer resident. Earliest arrival, April 10 ; 

 departs in October. Raises 1 brood. Eggs 3 or 4, dull white 

 tinged with bluish, rarely marked with dark brown. Nest of 

 sticks, twigs, bark and leaves in a tree. Eggs laid in May. 

 Feeds on birds and small quadrupeds ; often chickens and 

 game birds. Probably injurious. Note, a loud scream. 



46. Accipiter atricapillus (Wils.). 

 GOSHAWK. 



Above, dark bluish-slate, each feather dark-shafted; crown, blackish; 

 beneath, white closely barred with narrow, zigzag lines of slatj'-brown, 

 each feather with a black shaft line. In the young the upper parts are 

 more rufous and the under parts are streaked, not barred. Length, 20-24 

 inches. 



Not uncommon fall visitor in the vicinity of Northampton, 

 but has not been taken in Amherst. Very destructive to 

 poultry and game. Decidedly injurious. 



47. Buteo borealis (Qmel.). 

 RED-TAILED HAWK. HEN HAWK. 



Above, varied with brown, fulvous, gray and whitish; beneath, whitish 

 streaked with brown; tail of adult, rich chestnut with a broad bar of 

 black near the tip; tail of young, brown like the back, crossed by numer- 

 ous blackish bands. Length, 20-24 inches. 



Common resident. Raises 1 brood. Eggs 2-4, dull whitish 

 usually streaked and blotched with brown. Nest large and 

 bulky, of sticks, twigs, bark, etc. in tall trees. Eggs laid 

 last of April. Feeds on mice and other small quadrupeds, 

 birds and insects. Probably beneficial. Note, a loud shrill 

 " kee kee." 



