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Great Horned Owl (Bubo virginianus)
Contour body feather / Secondary flight feather

Great Horned Owl (Bubo virginianus)

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Strigiformes, Family: Strigidae, Genus: Bubo, Species: Bubo virginianus

Family: Strigidae (Typical Owls)

Shape
Symmetrical vane with a rounded tip, broad outline, and distinctive velvety texture along the leading edge
Size
Approximately 8 to 10 inches long, consistent with a secondary flight or large flank contour feather of a medium-to-large owl species
Rarity
Common and widespread
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Description

The Great Horned Owl is a powerful, heavily built nocturnal predator known for its prominent ear tufts, striking yellow eyes, and deep hooting call. It is one of the most adaptable and widely distributed owls in the Americas, capable of taking prey as large as hares, skunks, and other raptors.

Colour & Pattern

Rich earthy brown tones featuring bold, dark brown to black horizontal barring alternating with mottled grey, white, and buff background patterns; strong melanin-based pigmentation

Barb Structure

Pennaceous vane with specialized plumulaceous (velvety/downy) fringes that help dampen sound for silent flight; barbs are tightly interlocked with microscopic barbicels except at the fluffy base

Texture & Surface

Remarkably soft, velvety, and matte in appearance; lacks the glossy sheen found in diurnal raptors, an adaptation to eliminate sound friction during flight

Key Features

Soft, velvety texture, muted earthy brown and grey barred pattern, rounded tip, and absence of glossy sheen characteristic of silent-flight adaptations

Habitat

Extremely adaptable, found in deciduous and coniferous forests, deserts, wetlands, grasslands, agricultural areas, and urban parks

Geographic Range

Widespread throughout North America, Central America, and South America, ranging from the subarctic down to the southern tip of South America

Ecological Role

Apex nocturnal predator serving a critical role in controlling rodent and small mammal populations, acting as a primary top-down regulator in woodland and open ecosystems

Similar Species

Barred Owl (Strix varia) and Short-eared Owl (Asio flammeus), though Barred Owls have more streaked vertical patterns rather than distinct horizontal barring

Interesting Facts

Great Horned Owls possess asymmetrical ear openings that allow them to pinpoint prey in complete darkness with pinpoint accuracy. Their silent flight is achieved through specialized comb-like leading edges on their primary and secondary flight feathers

Condition Notes

Good condition with intact barbs and minimal fraying, though showing slight natural wear along the edges indicating it was naturally molted