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Great Horned Owl (Hoot Owl, Winged Tiger)
Primary flight feather (outer primary, likely P7 or P8)

Great Horned Owl (Hoot Owl, Winged Tiger)

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

Family: Strigidae (Typical Owls)

Shape
Slightly asymmetrical vane with a rounded tip, broad outline, and distinctly serrated or frayed leading edge typical of silent flight adaptations.
Size
Approximately 11.5 inches long, perfectly consistent with a large primary flight feather from a Great Horned Owl. Primaries for this species typically range from 10 to 14 inches.
Rarity
Common (regularly encountered across its vast range, though more frequently heard than seen due to nocturnal habits)
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Description

The Great Horned Owl is a large, powerfully built owl with prominent plumicorns ('horns') that give it a cat-like appearance. It has striking yellow eyes, a white throat patch, and heavily barred underparts. Known for its deep, echoing hoot, it is a ferocious and opportunistic nocturnal apex predator with a massive wingspan reaching up to five feet.

Colour & Pattern

Rich dark brown and blackish barring interlaced with mottled white, gray, and buff spotting. The rachis is dark brown transitioning to white near the tip. Melanin-based pigmentation provides durability and camouflage.

Barb Structure

Pennaceous vane structure with specialized velvety texture and comb-like fringes on the leading edge barbs, lacking firm hooklets at the very tips to muffle sound during flight; small downy plumulaceous base.

Texture & Surface

Exceptionally soft and velvety to the touch due to specialized micro-surfacing on the barbules, matte appearance with no gloss, designed entirely for soundless aerial movement.

Key Features

Large size, rich brown-and-white barred pattern, robust curved rachis, and velvety, fringed leading-edge barbs unique to large owls for silent flight.

Habitat

Incredibly adaptable, found in deciduous and coniferous forests, deserts, swamps, tundra, pampas, mangrove swamps, and even urban and suburban parks and agricultural areas.

Geographic Range

Widespread throughout the Americas, ranging from the subarctic regions of Canada and Alaska down through the United States, Central America, and deep into South America.

Ecological Role

Apex nocturnal raptor that plays a crucial role in controlling populations of rodents, rabbits, skunks, and other small-to-medium-sized mammals and birds, helping maintain balanced ecosystems.

Similar Species

Snowy Owl (white plumage with dark barring), Barred Owl (brown barred chest instead of horizontal bars, lacks ear tufts and specialized serrated flight edges of this size), and Great Gray Owl (larger, grayer, with distinct facial discs).

Interesting Facts

Great Horned Owls are capable of exerting up to 500 pounds of pressure per square inch in their grip, roughly equivalent to the bite force of a large dog. They are also known to readily take over abandoned nests of hawks, eagles, and crows.

Condition Notes

Good overall condition, fresh appearance with intact barbs and minimal fraying at the tip, showing slight natural wear along the trailing edge.

Notes

In a field

Great Horned Owl (Hoot Owl, Winged Tiger) | Feather Identifier