294 HAWKS, EAGLES, AND KITES 
“Of 159 stomachs examined, 6 contained poultry or game birds; 
99, other birds; 6, mice; 5, insects; and 52 were empty” (Fisher). 
333. Accipiter cooperi (Bonap.). Coopsr’s Hawk. Ads.—Similar 
to adults of the preceding, but larger and with the crown blackish. Im.— 
Similar in color to young of A. velox, but larger. ¢ L., 15°50; W., 9°50; T., 
7°75; B. from N., 55. @ L., 19°00; 
W., 10°50; T., 9°00. 
Range.—N. A. Breeds from s. B. 
C., s. Alberta, s. Keewatin, cen. Que., 
and Prince Edward Is. s. to s. border 
of the U. S.; winters from s. B. C., 
Colo., Nebr., Ohio, and Mass., s. to 
Costa Rica, and occasionally further n. 
Washington, common S. R., less 
common W. V. Ossining, tolerably 
common P. R. Cambridge, common 
common, Mch. 20-Nov. 1; a few 
winter. Glen Ellyn, local S. R., a few 
winter. SE. Minn., common S. R., 
Mch 3. 
Nest, in trees, 25-50 feet up. Eggs, 
3-6, pale bluish white, sometimes 
lightly spotted with brownish, 1°90 x 
1°55. Date, Montgomery Co., Pa., 
Apl. 30; New London, Conn., Apl. 27; 
Fic. 86. Rounded tail of Cooper’s Hawk. Cambridge, May 5; Herkimer Co., N. 
Y., May 6. 
This species resembles the preceding in habits, but because of its 
larger size is more destructive to poultry. 
“Of 133 stomachs examined, 34 contained poultry or game birds; 
52, other birds; 11, mammals; 1, frog; 3, lizards; 2, insects; and 39 
were empty’’ (Fisher). 
334. Astur atricapillus atricapillus (Wils.). GosHawk. Ads.— 
Upperparts bluish slate-color; head blackish, a white line over and behind the 
eye; inner tail-feathers like the back, outer ones more fuscous, and slightly 
marked with blackish; tip whitish; entire underparts evenly marked with 
irregular, wavy bars of gray and white, the feathers of the throat and breast 
with darker shaft streaks. Im.—Upperparts fuscous, margined with rufous; 
primaries barred with black; tail brownish gray, barred with black; under- 
parts white or buffy, streaked with black. 7 L., 22°00; W., 13°00; T., 10°00; 
B. from N., °65. 9 L., 24°00; W., 13°40; T., 11°50. 
Range.—N. A. Breeds in Boreal zones from nw. Alaska, nw. Mackenzie, 
cen. Keewatin, and n. Ungava s. to Mich., and N. H., and in the mountains 
s. to Pa. and N. M.; winters from Alaska and the s. Canadian Provinces s. 
to n. Mex., Tex., Okla., Mo., Ind., and Va.; accidental in England. 
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. 
Nest, in trees. Eggs, 2-5, ‘‘white, or glaucous-white, sometimes very 
faintly marked with pale brownish, 2°31 x 1°74’? (Ridgw.). Date, Moore- 
housemue, N. Y., Apl. 20; Kentville, N. S., Apl. 8; St. Croix Co., Wis., 
pl. 17. 
With the general habits of the two preceding species, this larger 
bird is much bolder than either. Dr. Fisher remarks: “This species 
