Great Horned Owl (Tiger Owl, Hoot Owl)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Strigiformes, Family: Strigidae, Genus: Bubo, Species: Bubo virginianus
Family: Strigidae (Typical Owls)
- Shape
- Asymmetrical vane typical of flight feathers; the leading edge is much narrower than the trailing edge. It features a tapered, rounded tip and a distinct curve or 's' shape along the rachis.
- Size
- Approximately 10-12 inches (25-30 cm) in length. This is consistent with the outer primary feathers of a large female Great Horned Owl.
- Rarity
- Common and widespread. While often heard rather than seen due to nocturnal habits, it is among the most widespread owls in the Americas.
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Description
This is a majestic flight feather from the 'Tiger of the Air.' The Great Horned Owl is a large, powerful predator with prominent ear tufts and yellow eyes. Their plumage is a masterclass in camouflage, allowing them to disappear against tree bark during the day.
Colour & Pattern
Complex cryptic pattern of dark brown/blackish horizontal bands (bars) against a mottled tawny and white background. The mottling is highly detailed, mimicking tree bark. The base of the feather has larger white patches.
Barb Structure
Unique 'velvety' or 'fringed' structure. The leading edge has stiff, comb-like serrations (flutings) to break up airflow, while the trailing edge has a soft fringe. The barbs are mostly pennaceous but have a soft, plumulaceous feel.
Texture & Surface
Soft and matte. Unlike most raptors, it lacks a glossy finish to avoid light reflection. The surface feels like velvet or fine felt, an adaptation for silent hunting.
Key Features
Cryptic brown and white mottling; heavy horizontal bars; soft, fringed edges for silent flight; thick, curved dark rachis.
Habitat
Extremely versatile; found in deciduous and evergreen forests, swamps, deserts, agricultural areas, and even urban parks. Requires some woodsy cover for nesting.
Geographic Range
Resident throughout North and South America, from the subarctic tree line in the north to the tip of South America. Non-migratory but may wander.
Ecological Role
Apex nocturnal predator. They control populations of rodents, skunks, and even other birds of prey. They are vital indicators of ecosystem health.
Similar Species
Barred Owl feathers (smaller, cleaner vertical barring on body plumes, different brown tone) and Snowy Owl (whiter, less mottling). The Great Horned Owl's feather is significantly larger and more tawny.
Interesting Facts
The fringed edges of Great Horned Owl feathers are an evolutionary marvel that allows them to fly in near-total silence, preventing prey from hearing their approach. Their grip strength can exceed 300 psi.
Condition Notes
Fair to Poor. The feather shows significant weather wear; the barbs are separated (unzipped), and there is visible fraying at the tip and edges, likely due to environmental exposure after molting.