Great Horned Owl

Overview

The Great Horned Owl (Bubo virginianus) is one of the largest and most formidable owl species in the Americas. Named for its distinctive feather tufts or 'horns' atop its head, this apex avian predator stands 18-25 inches tall with a wingspan reaching up to 5 feet. Its mottled brown, gray, and white plumage provides excellent camouflage against tree bark, while its piercing yellow eyes and powerful talons make it a supremely effective nocturnal hunter. This highly adaptable species thrives in an extraordinary range of habitats, from Arctic tundra edges to tropical rainforests, and from dense woodlands to desert canyons and suburban parks. Great Horned Owls are year-round residents throughout most of their range, displaying strong territorial behavior and often using the same nesting sites for many years. They are among the earliest nesting birds in North America, frequently beginning courtship in the depths of winter. As generalist predators, Great Horned Owls have one of the most varied diets of any North American raptor, taking prey ranging from insects and scorpions to rabbits, skunks, ducks, and even other raptors. Their powerful grip can exert over 300 pounds per square inch of pressure, and they are one of the few predators capable of regularly hunting skunks. The species' adaptability and fierce hunting prowess have earned it the nickname 'tiger of the air' among ornithologists and bird enthusiasts.

How to identify

Large, robust owl with prominent widely-spaced ear tufts (plumicorns), facial disk bordered in black or brown, piercing yellow to golden-yellow eyes, and white throat patch. Overall plumage is heavily mottled in brown, gray, rust, and white, providing cryptic coloration. Size: 18-25 inches tall, wingspan 3.3-5 feet, weight 2-5.5 pounds (females larger than males). Call is a deep, resonant series of 3-8 hoots: 'hoo-hoo-hoo, hoo-hoo' with the classic pattern often described as 'Who's awake? Me too.' Females produce a higher-pitched call. Flight is strong with slow, deliberate wingbeats.

Habitat

Extremely adaptable; occupies deciduous, coniferous, and mixed forests, open woodlands, swamps, riparian corridors, grasslands with scattered trees, desert scrublands, agricultural areas, parks, and suburban environments. Requires some trees or cliffs for roosting and nesting. Found from sea level to over 14,000 feet elevation in some parts of range.

Distribution

Widespread throughout the Americas from northern Alaska and Canada south through Central America to Tierra del Fuego in southern South America. Occupies nearly every habitat type across this vast range except the high Arctic tundra, dense unbroken rainforest, and some Caribbean islands. One of the most broadly distributed owl species in the Western Hemisphere.

Diet

Highly opportunistic carnivore with exceptionally varied diet. Primary prey includes medium-sized mammals such as rabbits, hares, ground squirrels, rats, mice, and voles. Also takes birds ranging from songbirds to ducks, herons, and other raptors including smaller owl species. Will hunt skunks, opossums, porcupines, domestic cats, snakes, frogs, scorpions, crayfish, and large insects. Hunts primarily at night using exceptional hearing and vision, typically from a perch, swooping down to capture prey with powerful talons.

Behavior

Primarily nocturnal but also crepuscular, becoming active at dusk and before dawn. Highly territorial, defending territories year-round with aggressive displays and vocalizations. Pairs often duet, particularly during breeding season. Roosts during day in dense trees, often near trunk. Flight is direct and powerful with deep wingbeats. Known for fearless defense of nests, attacking much larger animals including humans who approach too closely. Generally solitary or in pairs. Uses sit-and-wait hunting strategy from elevated perches.

Reproduction & life cycle

One of the earliest nesting birds in temperate North America, with courtship beginning in late autumn and early winter. Does not build own nest; uses abandoned stick nests of hawks, crows, ravens, herons, or squirrels, as well as tree cavities, cliff ledges, or artificial platforms. Typically lays 1-4 (usually 2-3) white eggs in January-March (timing varies by latitude). Female incubates for 28-37 days while male provides food. Both parents care for young. Owlets fledge at 9-10 weeks but depend on parents for several months. Reaches sexual maturity at 2 years. Monogamous pairs often mate for life.

When to look

Year-round resident throughout most of range; best observed during winter courtship season (November-February) when highly vocal. Most active at dawn and dusk. In northern regions, some individuals may move south in winter, though most are non-migratory.

Cultural significance

Features prominently in Native American mythology across many tribes, often associated with wisdom, death, prophecy, or as messengers between worlds. Some tribes considered it a protector, while others viewed it as an omen. In modern culture, represents wisdom and wilderness. The deep hooting call is one of the most iconic sounds of North American nights and frequently used in films and media to evoke wilderness settings. Occasionally killed due to predation on poultry or perceived threats to pets, though legally protected in most jurisdictions under migratory bird treaties.

Similar species

• Long-eared Owl (Asio otus)
• Eurasian Eagle-Owl (Bubo bubo)
• Snowy Owl (Bubo scandiacus)

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