* 375. Great Horned Owl (Bubo virginianus). ©, 
L. 22; W. 15. Ads. Ears conspicuous; the feathers 
nearly throughout the body rusty basally; facial disc 
rich rusty. Notes. A loud, low, deep-toned whoo, hoo- 
hoo-hoo, whooo-whooo, variable, but usually on the same 
note; rarely a hair-raising scream. 
Range.—Eastern North America; north to Labrador, south to Central 
America; resident. 
375a. Western Horned Owl (8. 0. pallescens). 
Smaller and paler than No. 375, W. 13.7; facial disc 
washed with rusty. 
Range.—Western United States, except Pacific coast region, east 
to Great Plains; casually Wisconsin and Illinois north to Manitoba 
and British Columbia; south to Mexico. 
375b. Arctic Horned Owl (8. v. arcticus). Black 
and white prevailing above; bases of feathers light 
yellowish buff; below black and white with 
little or no buffy; facial disc gray. ; 
Range.—Interior of Arctic America, from Rocky Mountains east to 
Hudson Bay; breeds north of Lat. 51°; in winter straggles south- 
ward to adjacent border of United ‘States; rarely to Wyoming and 
Nebraska. 
375c. Dusky Horned Owl (8. ». saturatus). Size 
of No. 375b, but much darker; black bars below equal- 
ling white ones in width; darkest bird of group. 
Range.—'‘Pacific coast region from Monterey Bay, California, 
north to Alaska; east to Hudson Bay and Labrador.’”’ (A. O. U.) 
375d. Pacific Horned Owl (8. 0. pacificus). Some- 
what smaller than No. 375b, W. 13.5; more like No. 
375 in color but less rusty. 
Range.—California, except humid coast region; east to Arizona. 
375e. Dwarf Horned Owl (B. 2. elachistus). Sim- 
ilar to No. 375c, but very much smaller. W. j’, 12.8; 
9, 13-4. (Brewster. ) 
Range.—Lower California. 
*%.376. Snowy Owl (Nyctea nyctea). L. 25. Ad. Q. 
White more or less barred with blackish. Ad. 9. . Sim- 
ilar, but more heavily barred. 
Range.—Northern parts of northern hemisphere; in America breeds 
from Lat. 50° northward; winters south to northern United States; 
straggles as far as Texas and California. 
377a. American Hawk Owl (Swriia ulula caparoch). 
L. 15; I. 7-2° long and rounded. Ads. Above 
brownish black, crown thickly spotted, scapulars con- 
spicuously margined with white; chin blackish; belly 
barred. Notes. A shrill cry generally uttered while 
flying. (Fisher.) 
Range.—Northern North America; breeds from Newfoundland and 
northern Montana_ northward; winters south to northern United 
States, rarely to New Jersey, Pennsylvania, and lllinois; rare on 
Pacific coast. 
143 
Owls. 
