
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
- Highly asymmetrical with a very narrow outer vane and a broad inner vane. The tip is rounded, and the leading edge shows significant emargination (narrowing), which helps reduce noise during flight.
- Size
- Estimated 8-10 inches (20-25 cm) in length. This is consistent with the outer primary feathers of a large female Great Horned Owl, which are slightly larger than males.
- Rarity
- Common; it is the most widely distributed owl in the Americas and is regularly encountered by those who know their nocturnal calls.
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Description
This is a robust feather from one of the world's most adaptable apex predators. The Great Horned Owl is a large, thick-bodied owl with prominent ear tufts and a white throat. It has a wingspan of up to 4.8 feet and is known for its deep, rhythmic hooting.
Colour & Pattern
Base color is off-white to cream with heavy, dark brown horizontal barring. The outer vane shows a mottled 'salt and pepper' grayish-brown pattern, while the inner vane features thick, distinct dark bands typical of the species.
Barb Structure
Pennaceous across the main vane but with specialized velvet-like plumulaceous fringes. The leading edge features unique stiff fimbriae (comb-like serrations) that break up air turbulence for silent flight.
Texture & Surface
Incredibly soft and silky to the touch due to 'bristle-like' extensions of the barbules. The surface has a matte appearance with no iridescence, finished with a fine powder-down bloom characteristic of raptors.
Key Features
Distinguished by the 'comb-like' leading edge (fimbriae), velvet-soft surface texture, and the specific pattern of bold dark brown barring against a cream base.
Habitat
Extremely versatile; found in deciduous and evergreen forests, swamps, deserts, subarctic tundra, agricultural areas, and even urban parks/cemeteries.
Geographic Range
Year-round resident throughout North and South America, from the northern tree line in Alaska and Canada down through Central America to the tip of South America.
Ecological Role
Apex predator; controls populations of rodents, rabbits, and even other birds of prey. Their presence indicates a healthy, functioning local ecosystem.
Similar Species
Great Gray Owl (larger, grayer tones), Long-eared Owl (smaller, thinner barring), and Barred Owl (shorter feathers with more vertical-styled barring on the body, though wing feathers are similar).
Interesting Facts
Great Horned Owls can exert over 300 pounds per square inch of pressure with their talons. They are one of the few animals that regularly hunt and eat skunks because they have a very poor sense of smell.
Condition Notes
The feather appears to be in excellent condition with minimal wear (no significant fault bars). The barbs are well-zipped, suggesting it was recently molted rather than recovered from a scavenged carcass.