Are There Great Horned Owls in Colorado?

Yes, Great Horned Owls are year-round residents throughout Colorado, inhabiting Rocky Mountain forests, riparian corridors, and foothills at elevations from 5,000 to over 10,000 feet. These powerful nocturnal predators thrive in the state's diverse mountain and foothill habitats. Colorado's forests and canyons support healthy populations across the entire state.

By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 20, 2026.

Great Horned Owl photographed in Colorado — Photos by iNaturalist observers, reused under the licence each observer chose.

Found in Colorado

1
species recorded: 98,344
GBIF records: 6
birding hotspots: May, April, June
peak months

Yes, great horned owls are in Colorado. Next you'll want:

Real sighting data, source iNaturalist

3,552 verified observations on iNaturalist of great horned owl have been recorded in Colorado, most often in May, April, June.

When great horned owl are recorded in Colorado

Where Great Horned Owls Are Found in Colorado

Great Horned Owls occupy virtually all forested regions of Colorado from the foothills to high mountain valleys. The Front Range, running north to south through central Colorado and including areas near Denver, Boulder, Fort Collins, and Colorado Springs, provides prime habitat in ponderosa pine, Douglas fir, and mixed conifer forests. The Rocky Mountains throughout the state, including national forests and wilderness areas, support widespread populations. Specific mountain ranges including the San Juan Mountains, La Sal Mountains, and the High Peaks region provide excellent habitat. The western slope of the Rockies, including areas around Grand Junction, supports populations in pinyon-juniper woodlands and riparian canyons. Riparian corridors along the Colorado River, South Platte River, Arkansas River, and other major watercourses provide critical habitat with cottonwood and willow trees. Canyon ecosystems including Black Canyon of the Gunnison and other deep canyons concentrate owls along the vertical rock faces and associated vegetation. Foothill regions transitioning between plains and mountains provide productive habitat. Lower elevation foothills with scattered ponderosa pine and rock outcrops support hunting populations. Even in the semiarid regions of eastern Colorado, scattered trees along streams and in rural settings support populations. High-elevation mountain valleys with mixed conifer forests provide summer range, though some birds move downslope in severe winters. Seethe Great Horned Owl guide for Coloradofor more.

Season and Timing in Colorado

Great Horned Owls in Colorado are primarily year-round residents, though some high-elevation populations show downslope movement in response to severe winter conditions. Breeding begins very early, with pairs establishing territories in November and December and laying eggs by January and February. This remarkably early timing takes advantage of prey before spring dispersal. The breeding season runs from November through June, with the most intense territorial calling occurring in December and January when cold weather concentrates prey at lower elevations and near water sources. Eggs typically hatch in February and March, with young fledging by May and June. Fledglings remain dependent on parents through summer. Throughout summer and fall, owls remain active but less vocal. High-elevation populations may shift downslope in October and November as snow arrives and prey becomes less accessible. Spring warming sends some birds back upslope to mountain territories. The state's harsh winters present significant survival challenges, with snow and cold reducing prey visibility and increasing energy demands. Spring and summer flooding along major rivers can temporarily displace prey and hunting owls. Autumn provides excellent conditions for owl activity with cooler temperatures reducing energy demands and prey becoming more active. Seethe Colorado wildlife guidefor more.

How to Identify a Great Horned Owl

Great Horned Owls are Colorado's largest common owl and are distinctively recognizable. Adults measure 18 to 25 inches tall with wingspans reaching 60 inches or more. The most distinctive feature is a pair of prominent ear tufts extending from the top of the head, giving the owl its characteristic cat-like appearance. Colorado's Great Horned Owls typically display darker plumage than southern populations, with gray-brown to russet-brown coloring and heavy streaking that provides excellent camouflage in forest shadows. The facial disc is relatively flat and broadly rounded. The eyes are large, forward-facing, and bright yellow, creating an intensely fierce and predatory expression. A dark facial mask surrounds the yellow eyes. Females are noticeably larger than males, sometimes weighing 25 to 35 percent more. In flight, Great Horned Owls appear stocky and powerful with broad wings held relatively flat and a short tail. They fly with direct, powerful wing beats quite different from the fluttering flight of smaller owls. Juvenile owls lack prominent ear tufts and appear fluffier and less distinctly marked than adults. The call is distinctive, a series of deep hooting notes, typically four to five booms that sound like "hoo-hoo-hoo, hoo-hoo." In Colorado's mountains and canyons, this call echoes dramatically, traveling considerable distances in quiet nights. Seethe national wildlife hubfor more.

Where Sightings Concentrate in Colorado

Great Horned Owl sightings in Colorado concentrate in forested habitats with suitable nesting sites and abundant prey. The Front Range National Forests east of the Rocky Mountain crest, including areas accessible from Denver, Boulder, and Colorado Springs, provide excellent viewing opportunities. Specific locations include Chautauqua Park near Boulder, Red Rocks Park near Denver, and various state parks throughout the region. The high San Juan Mountains provide spectacular habitat, though access can be challenging. Grand Mesa, a high plateau in western Colorado, offers accessible forest habitat. The canyons of the western slope, including areas near Grand Junction, concentrate owls in riparian habitats. Black Canyon of the Gunnison National Park provides dramatic canyon habitat with vertical rock faces hosting owl nests. Rocky Mountain National Park in northern Colorado offers alpine valley habitat. Lower-elevation ponderosa pine forests along roadsides and accessible trails provide better viewing opportunities than high-elevation dense forests. Riverside parks and natural areas along major rivers concentrate owls where riparian trees provide roosting and nesting habitat. Urban parks in Denver, Boulder, Colorado Springs, and other Front Range communities with mature trees support accessible populations. The best viewing strategy involves visiting mountain forests during breeding season from November through March and listening for territorial calling at dawn and dusk. Visit/wildlife/coloradoto explore more wildlife viewing opportunities.

Typical Behavior and Diet

Great Horned Owls in Colorado are fierce nocturnal predators with diets reflecting the state's mountain fauna. The primary prey consists of rabbits and hares, particularly snowshoe hares in mountain forests. Cottontail rabbits provide substantial meals in lower elevations and foothill regions. Rock squirrels, fox squirrels, and tree squirrels are taken regularly. Voles, mice, rats, and other rodents supplement the diet. Flying squirrels provide occasional prey. Porcupines are taken occasionally despite their defensive quills, leading to some owls with quill injuries. Opossums and other small mammals are consumed when available. Ptarmigan, grouse, crows, and other birds supplement the diet, particularly in high mountains where mammals are scarce. The hunting strategy involves perching on high branches overlooking open areas and listening intently for prey movements. The owl's exceptional night vision and asymmetrical ear placement allow it to hunt effectively even in complete darkness. Once prey is located, the owl dives at speeds exceeding 150 miles per hour, using powerful talons to capture prey. Great Horned Owls are fierce competitors for food and territory. Roosting behavior involves spending daylight hours perched in dense trees, typically in evergreen cover where the dark bird blends seamlessly with shadows. During Colorado's snowy winters, roosting in protected locations is energetically important for survival.

Coexistence and Safety

Great Horned Owls in Colorado pose no threat to humans and can be safely observed from appropriate distances. These owls do not attack people under normal circumstances, even when defending nests or young. Avoiding direct approach to active nesting sites, particularly from November through June, is respectful practice that minimizes disturbance. If you encounter a fledgling owl on the ground in late spring or summer, it is likely a young owl still being cared for by parents and should be left alone. Great Horned Owls are protected under federal law by the Migratory Bird Treaty Act, making it illegal to harm, capture, or kill them. Colorado has no state threatened or endangered listing for the species, and populations remain stable. Vehicle collisions can occur where owls hunt along roadsides in valleys. Severe winters with deep snow can reduce prey accessibility and increase owl mortality. Habitat loss from forest clearing and urban development affects some populations, though Colorado's extensive mountain forests provide buffer against localized impacts. Coexistence is straightforward: enjoy observing these remarkable predators while maintaining appropriate distance and respecting their nesting activities. Never use rodent poisons if you want to preserve healthy owl populations.

Species Confusion in Colorado

Several owl species in Colorado might be confused with Great Horned Owls, though distinctive features aid identification. The Barn Owl is pale-faced and lacks ear tufts, with a heart-shaped facial disc. Barn Owls prefer open grasslands and do not occur in Colorado's mountain forests. The Short-eared Owl has small ear tufts visible only as low bumps and hunts in daylight over open country. The Long-eared Owl is smaller and more delicate, with longer ear tufts and a more cryptic patterned appearance. Long-eared Owls prefer dense forest cover. Western Screech-Owls are tiny, only 7 to 10 inches tall, with ear tufts but preferring lower-elevation scrub habitat. Northern Pygmy-Owls are small and lack ear tufts, occurring in mountain forests. Flammulated Owls are very small owls of ponderosa pine forests. The Great Gray Owl is much larger than Great Horned Owls but occurs rarely in Colorado. Size alone eliminates most confusion, with Great Horned Owls being Colorado's largest common owl. Ear tuft prominence, eye color, and habitat use further distinguish them.

Frequently Asked Questions

When do Great Horned Owls breed in Colorado? Great Horned Owls breed remarkably early in Colorado, with pair formation beginning in November and eggs laid by January and February. This early timing allows young to fledge by late spring when prey populations peak. How do Great Horned Owls survive Colorado's harsh winters? Dense feathering and metabolic heat production allow survival in extreme cold. Behavioral adaptations including roosting in sheltered locations and efficient hunting allow Great Horned Owls to remain year-round despite severe winters. What happens to Great Horned Owls that nest in high mountains when winter arrives? Some high-elevation birds show downslope migration in response to severe winter conditions. Birds nesting at lower elevations in foothills and canyons often remain year-round. Can Great Horned Owls be heard in Colorado's mountain canyons? Yes, in the quiet mountain environment, Great Horned Owl calls carry great distances through canyons and valleys. Their deep hooting is one of the most impressive sounds in Colorado's wilderness. Learn more at/wildlife/colorado.

Plan your trip

Best time to see great horned owl in Colorado: May, April, June

See the month-by-month sighting calendar.

When to go

Plan your great horned owl sighting in Colorado

98,344 verified great horned owl records have been logged in Colorado, most recently in 2026. See the GBIF records.

Where to look in Colorado

Bent's Old Fort National Historic Site · Wildlife Watching, Birdwatching · Find hotels
Black Canyon Of The Gunnison National Park · Wildlife Watching, Birdwatching · Find hotels
Colorado National Monument · Wildlife Watching · Find hotels
Curecanti National Recreation Area · Wildlife Watching, Birdwatching · Find hotels
Dinosaur National Monument · Wildlife Watching, Birdwatching · Find hotels
Great Sand Dunes National Park & Preserve · Wildlife Watching, Birdwatching · Find hotels
Pueblo Reservoir · 373 species recorded
Barr Lake SP · 358 species recorded
John Martin Reservoir · 352 species recorded
Chatfield SP (Douglas Co.) · 349 species recorded
Cherry Creek SP · 348 species recorded
Chatfield SP (Jefferson Co.) · 336 species recorded

Birding hotspots via eBird (Cornell Lab).

Recent great horned owl sightings

Garden of the Gods · 2026-07-20 10:30 · 1 seen
8505 Temple Drive, Denver, Colorado, US (39.633, -104.89) · 2026-07-20 08:20 · 1 seen
Colorado Riverfront Trail--Audubon Section · 2026-07-20 06:54 · 1 seen
Spinnaker private location · 2026-07-19 20:50 · 1 seen
17100–17198 Peak to Peak Hwy, Lyons US-CO 40.18736, -105.48757 · 2026-07-19 20:37 · 1 seen

Planning a trip to see great horned owl? Find places to stay near Bent's Old Fort National Historic Site on Booking.com.

More wildlife in Colorado

Cardinal in Colorado Hawk in Colorado Badger in Colorado