
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 asymmetrical with a rounded tip; the outer vane is narrower than the inner vane. There is subtle fimbriation (combing) on the leading edge.
- Size
- Estimated at 8 to 9 inches (20-23 cm) in length and 1.5 to 2 inches in width. This falls within the typical range for secondary feathers of an adult Great Horned Owl.
- Rarity
- Common; it is the most widely distributed owl in the Americas, though rarely seen due to its nocturnal habits.
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Description
The Great Horned Owl is a large, powerful raptor with prominent ear tufts and piercing yellow eyes. Its plumage is a complex mosaic of browns, grays, and whites. This feather reflects the bird's stealthy nature, designed for silent ambush and effective concealment against tree bark.
Colour & Pattern
Mottled brownish-umber and buff. It features distinct dark brown horizontal bars alternating with lighter tan or cream-colored bands. The patterning is irregular (mottled) rather than perfectly crisp, providing excellent camouflage.
Barb Structure
The structure is mostly pennaceous but exceptionally soft. The upper surface has a velvet-like pile (pennulum) and the leading edge features a specialized comb-like fringe to reduce turbulence and enable silent flight.
Texture & Surface
Extremely soft and velvety to the touch. This matte, non-reflective surface is a hallmark of nocturnal raptors, serving to dampen sound.
Key Features
Velvety surface texture, 'comb' fringe on the leading edge, and thick, mottled brownish-tan banding with a sturdy, pale rachis.
Habitat
Extremely versatile; found in deciduous and evergreen forests, swamps, deserts, subarctic tundra, city parks, and agricultural areas.
Geographic Range
Year-round resident across most of North America, from the tree line in the Arctic south through Central and South America.
Ecological Role
Apex predator; it controls populations of rodents, rabbits, and even other birds of prey. Its presence indicates a healthy, diverse ecosystem.
Similar Species
Barred Owl (more uniform, crisp white and brown bars) or Long-eared Owl (smaller, more orange/ochre tones).
Interesting Facts
The Great Horned Owl's grip is so powerful it can exert 300-500 pounds per square inch, and they are one of the few predators that regularly hunt and eat skunks because they have a poor sense of smell.
Condition Notes
Fair to Good; the feather shows significant wear and separation in the trailing vane (splitting of the barbs), suggesting it may have been molted naturally or sustained stress during life.