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Great Horned Owl (Northern Great Horned Owl, Hoot Owl)
Primary flight feather (Remiges), likely P9 or P10 based on the strong asymmetry and distal tapering.

Great Horned Owl (Northern Great Horned Owl, Hoot Owl)

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

Family: Strigidae (Typical Owls)

Shape
Highly asymmetrical with a very narrow outer vane and a broad inner vane; pointed tip; distinct emargination on the inner vane characteristic of large raptors.
Size
38cm (approximately 15 inches). This is at the upper maximum size limit for the species, suggesting a large female from a northern population.
Rarity
Common; one of the most widespread and successful owls in the Americas.
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Description

A massive, powerful owl with prominent ear tufts and piercing yellow eyes. Its plumage is a complex mosaic of gray, brown, and buff designed for camouflage against tree bark. In flight, it has broad, rounded wings and a short tail; vocalization is a deep, rhythmic series of hoots.

Colour & Pattern

Tawny ochre base with bold, dark brown/black transverse banding; outer vane features mottling (vermiculation); ventral side is paler than dorsal surface; dark terminal band at the tip.

Barb Structure

Pennaceous and tightly interlocked with a specialized velvety soft texture (fimbriae/flutings) on the leading edge and dorsal surface for silent flight; plumulaceous at the extreme base.

Texture & Surface

Distinctively soft and velvety; matte finish avoids light reflection; the leading edge feels serrated or 'comb-like' to the touch to break up air turbulence.

Key Features

38cm length; velvety 'silent flight' texture; bold dark banding on an ochre base; extreme asymmetry of the vanes.

Habitat

Extremely versatile; found in deciduous and evergreen forests, swamps, deserts, agricultural areas, and urban parks; nests in old raptor nests, cavities, or on cliff ledges.

Geographic Range

Year-round resident across North and South America, ranging from the Arctic treeline south to the Straits of Magellan.

Ecological Role

Apex predator; controls populations of rodents, skunks, and other birds; highly adaptable 'generalist' hunter.

Similar Species

Eurasian Eagle-Owl (larger, darker orange tones); Snowy Owl (lacks tawny ochre, predominantly white/black); Great Gray Owl (wider tail feathers, different banding consistency).

Interesting Facts

The Great Horned Owl has a gripping force of up to 500 psi in its talons, enough to crush the skull of a rabbit; they are one of the few predators that regularly hunt skunks because they have a poor sense of smell.

Condition Notes

Good to Excellent. The vanes are mostly intact with minor 'zipper' separation toward the base; little evidence of sun bleaching or feather lice damage.

Notes

38cm long