. Handbook of birds of the western United States, including the great plains, great basin, Pacific slope, and lower Rio Grande valley . 22-25, extent about 57. wing 16, tail 9. Distribution. —Western United States, east through the casuallyto Wisconsin and Illinois; and from British Columbia and Manitoba southover the Nest. — A liolp in a hollow tree, cliff, bank, or cave, or an old nest of acrow or hawk. Eggs: usually 2 or 3, white. Food. — Largely mammals such as rabbits, prairie dogs, ground scjuir-rels. skunks, and wood rats, game birds, waterfowl, smaller la
. Handbook of birds of the western United States, including the great plains, great basin, Pacific slope, and lower Rio Grande valley . 22-25, extent about 57. wing 16, tail 9. Distribution. —Western United States, east through the casuallyto Wisconsin and Illinois; and from British Columbia and Manitoba southover the Nest. — A liolp in a hollow tree, cliff, bank, or cave, or an old nest of acrow or hawk. Eggs: usually 2 or 3, white. Food. — Largely mammals such as rabbits, prairie dogs, ground scjuir-rels. skunks, and wood rats, game birds, waterfowl, smaller land , in settled regions, poultry. The eyesight of the horned owls seems to be better than tliat ofmost owls, and Dr. Fisher thinks that in the soastni theyhunt indifferently night or day. In disposition, he says, they arefierce and untamable, and in point of strength and courage infe-rior to none of our rapacious birds. Speaking of their food habits,the doctor says that a bird so powerful and voracious may at timesbe a source of great benefit, while at other times it mav be the cause 186 HORNED OWLS, Fig. 249. Western Hornetl Owl. ill December and January, and in AlaskaApril when it was so cold that they frozenest. of great damage. Now,the serious inroads itmakes on the tenantsof the poultry yard, aswell as the destructionof many game and songbirds, would seem tocall for the total sup-pression of the , Avhen engagedchieflj^ in the capture ofinjurious rodents, whichthreaten the very exist-ence of the crops, it isthe farmers most valu-able ally, and conse-quently should be mostcarefully protected, The horned owl is oneof the earliest breedersof the birds of the southern part ofits range, eggs are laidthey have been found inon being taken from the 375b. B. V. arctieus (Swains.). Arctic Horned Owl. Similar to the western horned owl, but ground color white and darkmarkings usually much restricted ; imder parts pure white, or only s
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