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The snowy owl (Bubo scandiacus), [4] also known as the polar owl, the white owl and the Arctic owl, [5] is a large, white owl of the true owl family. [6] Snowy owls are native to the Arctic regions of both North America and the Palearctic, breeding mostly on the tundra. [2]
They are similar in size to the American robin (78.5 g). [13] Northern saw-whet owls do not exhibit sexual dimorphism in their plumage, so are often sexed by size dimorphism—females are larger than males. Females on average weigh 100 g and males on average weigh 75 g. [15] Northern saw-whet owls have porphyrin pigments in their flight ...
The Snowy Owl was part of the original edition of The Birds of America (sometimes called the Havell Edition [9] [7] after its printer, and sometimes called the "Double Elephant Folio", because of its size). It was printed on handmade paper 39.5 inches tall by 28.5 inches wide (100.3 × 72.4 cm).
Owls are divided into two families: the true (or typical) owl family, Strigidae, and the barn owl and bay owl family, Tytonidae. [2] Owls hunt mostly small mammals, insects, and other birds, although a few species specialize in hunting fish. They are found in all regions of the Earth except the polar ice caps and some remote islands.
Similar to other owls, the screech owl females are larger than the males of their species. They have a compact size and shape. They are small and agile, and about 7 to 10 inches tall and have a wingspan around 18 to 24 inches. They have prominent, wide-set feather tufts with bright yellow/green eyes.
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Adults are 15–17 cm (5.9–6.7 in) in overall length and are gray, brownish-gray or rufous in colour. This owl has a round white-spotted head, weakly defined facial disc, and dark upper breast, wings and tail, the latter quite long compared to other owls. The eyes are yellow and the bill is yellowish-green.
Long-eared owls are 19.5% of owls (or 197 total owls) recorded migrating through Cape May Point in fall (against a majority, 60.6%, being saw-whet owls), with 26.1% of the specimens from the species caught in the mist nets being adults. More than 90% of long-eared owls migrate between mid-October and late November, with the immatures migrating ...