. Michigan Vogelleben : eine Liste aller Vogelarten bekannt, um in den Staat auftreten zusammen mit einem Überblick über ihre Klassifizierung und ein Konto der Lebensgeschichte jeder Art, mit besonderem Bezug auf ihre Beziehung zur Landwirtschaft ... . Platte XXVI. Große Graue Eule. Von Baird, Brewer und Ilidgwajs North American Bird.s Little, Brown ATO. LANDVÖGEL. 313 Ufer der Hudsons Bay nordwärts bis zur Grenze der Bäume, etwa 68 Grad.in Alaska nistet sie schon im April in der Nähe des Meeres, und im Inneren noch Mitte Juni. Das Nest ist in Bäumen platziert, und die Eier, zwei Tofour, sind dumpf whi
1602 x 1559 px | 27,1 x 26,4 cm | 10,7 x 10,4 inches | 150dpi
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. Michigan bird life : a list of all the bird species known to occur in the State together with an outline of their classification and an account of the life history of each species, with special reference to its relation to agriculture ... . Plate XXVI. Great Gray Owl. From Baird, Brewer and Ilidgwajs NorthAmerican Bird.s Little, Brown ATo. LAND BIRDS. 313 shores of Hudsons Bay northward to the limit of trees, about 68 degrees.In Alaska it nests near the sea as early as April, and in the interior as lateas the middle of June. The nest is placed in trees, and the eggs, two tofour, are dull white with Uttle luster, unspotted, and average 2.16 by 1.71inches. Although this bird exceeds the Great Horned Owl in measurements, itsweight is much less, in fact seldom greater than that of the Barred Owl.Its plumage is very soft, fluffy and deep, so that it appears to be a muchheavier bird than it really is. Little seems to be known of its food, but it probably feeds largely on hares.. Fig. 80. IGreat Gray Owl. Adult.From photograph of museum specimen. (Original.) meadow mice and squirrels, together with ptarmigan and smaller birds.It is commonly reported to feed mainly at night, but since its habitat liesin large part within the Arctic Circle, it must do all its hunting during thesummer by daylight. TECHNICAL DESCRIPTION. Ear-tufts or plumicorns entirely absent; feet and toes heavily feathered to tlic baseof the claws; first six primaries cniarginate or sinuate on inner webs near tip; iris yellow. Adult: Dark graj-ish brown above, irregularly mottled witii grayish-white, and withsome indistinct cross-bars; under parts mottled grayish wiiite and dusky, with irregulardark grayish-brown stripes on breast and belly, and bars of same color on flanks, facialdisk grayish, with numerous concentric dark rings; bill yellowish or nearly white; clawsdark. Sexes alike in color, but female largest. Length 25 to 30 inches; wing IG to 18; tail 11 to 12.50; spread of wings 4 to 5
