
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 broad, rounded tip and a slightly curved outline. The leading edge (outer vane) is narrower than the trailing edge (inner vane).
- Size
- Approximately 18–22 cm (7–9 inches) in length; consistent with mid-to-outer secondary feathers of an adult Great Horned Owl.
- Rarity
- Common and widespread, though rarely seen during the day due to nocturnal habits and excellent camouflage.
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Description
This is a secondary wing feather from a Great Horned Owl, a powerful apex predator. The bird itself is large (up to 25 inches tall) with distinctive ear tufts, a white throat patch, and piercing yellow eyes. Its nocturnal lifestyle is reflected in the feather’s unique serrations designed for silent hunting.
Colour & Pattern
Mottled grayish-brown base with 4-5 distinct dark chocolate-brown transverse bars. The spaces between bars show complex 'vermiculation' or peppered markings characteristic of owl camouflage. The ventral (underside) is paler and more matte.
Barb Structure
Pennaceous throughout most of the vane with a soft, plumulaceous (downy) base. Features specialized velvet-like pilosity on the surface and a fine fimbriate (comblike) leading edge for silent flight.
Texture & Surface
Velvety, soft, and remarkably quiet to the touch. The surface has a 'downy' feel even on the stiff flight vane due to specialized dorsal barbules that dampen sound.
Key Features
Broad dark banding, heavy mottling (vermiculation), and a velvety texture with fimbriate edges for sound suppression.
Habitat
Extremely adaptable; found in deciduous and evergreen forests, swamps, deserts, subalpine fields, and urban parks/agricultural areas.
Geographic Range
Resident species found throughout North and South America, from the northern tree line in Alaska and Canada down to the tip of South America. Mostly non-migratory.
Ecological Role
Top-tier predator; controls populations of rodents, rabbits, and even other birds of prey. They are essential for maintaining balance in the nocturnal food web.
Similar Species
Barred Owl (Strix varia) feathers are similar but generally have cleaner, more defined white and brown bars with less peppery mottling. Red-tailed Hawk feathers are stiffer and lack the velvety texture.
Interesting Facts
Great Horned Owls have a bite force of up to 300 psi, comparable to a large dog, and are one of the few predators that regularly hunt skunks because they have a poor sense of smell.
Condition Notes
Good condition with some minor separation of the barbs (splits) on the trailing edge. The downy base is well-preserved, suggesting a naturally molted feather rather than one lost to trauma.