
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
- Asymmetrical vane with a rounded tip; the leading edge (outer vane) is narrower than the trailing edge (inner vane), typical of flight feathers designed for lift.
- Size
- Estimated 7-9 inches (18-23 cm) in length. This is consistent with the secondary feathers of a large female or male Great Horned Owl, which usually range from 6 to 10 inches depending on position.
- Rarity
- Common; it is one of the most widespread and successful birds of prey in the Americas.
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Description
This feather belongs to one of North America's most formidable nocturnal predators. The Great Horned Owl is a large, bulky bird with prominent ear tufts and striking yellow eyes. Their plumage is a masterclass in camouflage, blending perfectly with tree bark. In flight, they are nearly silent due to the specialized structure of feathers exactly like this one.
Colour & Pattern
Mottled brown, tan, and cream-white. It features heavy dark brown horizontal banding (bars) overlaying a grayish-brown base with fine 'vermiculation' (worm-like markings) characteristic of owl camouflage.
Barb Structure
Densely pennaceous throughout the main vane with a velvety 'fringe' or 'flutings' on the leading edge to muffle sound. The base features a significant plumulaceous (downy) section for insulation.
Texture & Surface
Extremely soft and velvety to the touch. The dorsal surface has a fine 'pile' or soft nap that breaks up airflow to facilitate silent flight, while the ventral surface is smoother.
Key Features
Distinctive 'owl' velvet texture, heavy transverse dark banding, fine gray-brown vermiculation, and a rounded tip with softened edges for noise reduction.
Habitat
Highly adaptable; found in deciduous and evergreen forests, swamps, deserts, agricultural areas, and even suburban parks or urban cemeteries.
Geographic Range
Common across North America from the Arctic tree line south through Central America and parts of South America. It is a non-migratory, year-round resident.
Ecological Role
Apex predator. They control populations of rodents, rabbits, and even other birds of prey. They are considered an indicator of a healthy, complex ecosystem.
Similar Species
Long-eared Owl feathers are much smaller and more orange-toned. Barred Owl feathers have cleaner, more defined white and brown horizontal bars without the heavy gray 'salt-and-pepper' vermiculation.
Interesting Facts
The Great Horned Owl has a grip strength of up to 500 PSI, which is comparable to that of a Golden Eagle. Their hearing is so acute they can detect a mouse under a foot of snow.
Condition Notes
Good condition; the vane appears intact with minimal fraying. There are no obvious 'fault bars' (which would indicate nutritional stress during growth), suggesting a healthy individual.