331. MARSH HAWK. 22 in. 



(Circus hudsonius.) 

 Bluish-gray, showing light streaks; gray below, belly 

 white marked with brown; tail barred; white rump; (female 

 brown, barred and streaked more heavily); note shrill. 



332. SHARP-SHINNED HAWK. 12 in. 



(Accipiter velox.) 

 Slate-gray, crown darker; edge of wing barred with black; 

 tail long, square, barred broadly, white-tipped; below white 

 slightly tinged with brown, streaked or faintly barred; 

 usually silent except at nesting period; soars in narrow 

 circles; flies swiftly; attacks poultry. Cooper Hawk. 



333. COOPER HAWK. 17 in. 



(Accipiter cooperi.) 



Resembles closely 332, but is larger, crown almost black; 

 tail rounded and showing more white at tip; flies swiftly; 

 attacks poultry; cackling note. Sharp-shinned, Red- 

 shouldered and Red-tailed Hawks. 



337. RED-TAILED HAWK. 19—22 in. 



(Buteo borealis.) 

 Much like 339 above but without shoulder-patch; tail 

 rich, red-brown, barred once with black (more or less 

 completely barred in female and immature); below white; 

 upper breast and throat streaked {adults show red-brown 

 tinge on sides); call, a squealing whistle; woodland; bene- 

 ficial. Red-shouldered and Broad-winged Hawks. 



339. RED-SHOULDERED HAWK. 18—20 in. 



(Buteo lineatus.) 



Dark brown varied with reddish-brown, buffy or gray- 

 ish; edge of wing barred black and white, showing four 

 notches in flight; red-brown shoulder-patch; tail blackish, 

 barred and tipped with white; below reddish-buff, barred 

 with whitish; (immature streaked below^ or heavily spotted; 

 shoulder-patch less showy); note, "kee-you"; beneficial, 

 although commonly known as a hen-hawk. Red-tailed 

 and Broad-winged Hawks. 



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