
Great Horned Owl (also known as Tiger Owl or Hoot Owl)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Strigiformes, Family: Strigidae, Genus: Bubo, Species: Bubo virginianus
Family: Strigidae (Typical Owls)
- Shape
- Broad and rounded at the distal tip with a relatively straight rachis; slightly asymmetrical vanes common in tail feathers.
- Size
- Approximately 7 to 9 inches in length. This is consistent with the standard retrix size for an adult Great Horned Owl, which typically ranges between 17 and 25 cm.
- Rarity
- Common. It is the most widely distributed owl in the Americas, though its nocturnal nature makes feathers more commonly found than the birds are seen.
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Description
A magnificent large owl with prominent ear tufts (plumicorns) and piercing yellow eyes. Its plumage is a complex mosaic of browns and greys designed for perfect camouflage against tree bark. The wingspan can reach up to 5 feet.
Colour & Pattern
Mottled brown, tawny, and cream/off-white. It features heavy, irregular horizontal barring and 'vermiculation' (worm-like markings) throughout. The ventral (underside) is typically lighter than the dorsal surface.
Barb Structure
Pennaceous throughout most of the vane with a soft, velvety fringe (fimbriae) on the edges; plumulaceous (downy) at the base (superior umbilicus) to provide insulation.
Texture & Surface
Extremely soft and velvety to the touch. The surface has a specialized 'downy' coating that dampens sound, allowing for silent flight by breaking up air turbulence.
Key Features
Distinguished by the soft, 'hairy' fringe on the edges for silent flight and the specific 'vermiculated' barring pattern that is coarser than that of a Barred Owl.
Habitat
Highly adaptable; found in deciduous and evergreen forests, swamps, deserts, tundra edges, tropical rainforests, cities, and suburban parks.
Geographic Range
Year-round resident across most of North America from the Arctic tree line south through Central and parts of South America.
Ecological Role
Apex predator. They play a vital role in controlling populations of rodents, rabbits, and even smaller raptors. Often referred to as 'the tiger of the sky'.
Similar Species
Barred Owl (Strix varia) feathers have more distinct, crisp horizontal 'bars' and lack the fine vermiculation. Long-eared Owl feathers are much smaller and more slender.
Interesting Facts
The Great Horned Owl has a grip strength of approximately 300-500 psi, which is comparable to that of a Golden Eagle. They are one of the few predators that regularly hunt skunks because they have a very poor sense of smell.
Condition Notes
Fair to Good. There is significant fraying and separation of the barbs (zipper effect) on the right side and near the base, likely due to natural wear or being found as a molted specimen.