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Accipitridae is a family of birds of prey which includes hawks, eagles, kites, harriers, and Old World vultures. These birds have very large powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons, and keen eyesight. Swallow-tailed kite, Elanoides forficatus (C) Golden eagle, Aquila chrysaetos
It is the most widely distributed game bird in North America. [2] It is non-migratory. It is the only species in the genus Bonasa. The ruffed grouse is sometimes incorrectly referred to as a "partridge", an unrelated phasianid, and occasionally confused with the grey partridge, a bird of open areas rather than woodlands. [3]
Nests as high as 18 feet (5.5 m) have been reported in literature reviews. [4] [19] [21] Nests higher off the ground in mixed aspen stands of varying ages in Pennsylvania had significantly (p<0.001) lower nest success. Of 13 unsuccessful eastern towhee nests, 11 were greater than 1-foot (0.30 m) above the ground.
Deep cup nest of the great reed-warbler. A bird nest is the spot in which a bird lays and incubates its eggs and raises its young. Although the term popularly refers to a specific structure made by the bird itself—such as the grassy cup nest of the American robin or Eurasian blackbird, or the elaborately woven hanging nest of the Montezuma oropendola or the village weaver—that is too ...
Village weavers nest in colonies and are very active during the breeding season. Birds fly in and leave again constantly, making significant noise. Colonies can contain as many as 150 nests, but eight to a hundred nests in a single tree are usual. [10] A village weaver's nest is 14–17 cm (5.5–6.7 in) long and 11–13 cm (4.3–5.1 in) high.
Indigo bunting nests are vulnerable to a variety of climbing and flying predators, including Virginia opossum (Didelphis virginiana), red fox (Vulpes vulpes), domestic cat (Felis catus), blue jay (Cyanocitta cristata), eastern racer (Coluber constrictor) and raccoon (Procyon lotor). [22] The bird is also susceptible to parasitism by louse flies ...
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The nests vary in size, shape, material used, and construction techniques from species to species. Materials used for building nests include fine leaf fibers, grass, and twigs. Many species weave very fine nests using thin strands of leaf fiber, though some, like the buffalo-weavers, form massive untidy stick nests in their colonies, which may ...