Are There Great Horned Owls in California?

Yes, Great Horned Owls are widespread year-round residents throughout California, from coastal redwood forests to desert scrublands and high mountain meadows. These powerful nocturnal predators thrive in virtually every terrestrial habitat the state offers. California supports useful populations of this formidable owl across its diverse landscapes.

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 California — Photos by iNaturalist observers, reused under the licence each observer chose.

Found in California

1
species recorded: 255,265
GBIF records: 6
birding hotspots: April, May, June
peak months

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

Real sighting data, source iNaturalist

26,152 verified observations on iNaturalist of great horned owl have been recorded in California, most often in April, May, June.

When great horned owl are recorded in California

Where Great Horned Owls Are Found in California

Great Horned Owls occupy virtually every habitat region of California from sea level to alpine elevations. Coastal regions including the northern redwood forests of Del Norte and Humboldt counties provide ideal habitat in temperate rainforest and mixed conifer stands. The Sierra Nevada mountain range, running the length of the state from north to south, supports populations from the lower mixed conifer zones to the high country. Specific locations include Yosemite National Park, Kings Canyon, Sequoia National Park, and hundreds of national forests and wilderness areas throughout the range. The coastal ranges and oak woodlands of central California provide prime habitat. The chaparral and scrubland regions of southern California support adapted populations. Desert regions including the Mojave, Colorado, and Anza-Borrego deserts support Great Horned Owls in scattered trees along washes and riparian corridors. The Sierra foothills and valley margins support populations. The Central Valley, historically an agricultural region with scattered oak trees and cottonwood riparian areas, still supports owl populations in remaining natural habitat patches. Riparian corridors along the Sacramento River, San Joaquin River, and tributaries throughout the state provide critical habitat. Urban and suburban areas of San Francisco Bay Area, Los Angeles, San Diego, and other metropolitan regions support resident populations that have adapted to human presence. Coastal grasslands and mixed shrubland support mobile hunting populations. State parks and national recreation areas throughout California host populations, making Great Horned Owls widely accessible to observers across the state. Seethe Great Horned Owl guide for Californiafor more.

Season and Timing in California

Great Horned Owls in California are year-round residents, though some mountain and northern populations show altitudinal or latitudinal movement in response to 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 allows young to fledge by late spring and early summer. The breeding season runs from November through June, with the most intense territorial calling occurring in December and January when weather is cool and prey is concentrated at lower elevations. Eggs typically hatch in late February and March, with young fledging by May and June. Fledglings remain dependent on parents through summer and early fall. Throughout summer and fall, owls remain active but less vocal than during breeding season. In high mountain regions, snow and winter conditions can cause upslope residents to move downslope to areas with more accessible prey. Coastal and foothill populations experience less seasonal variation. The state's variable Mediterranean climate with wet winters and dry summers affects prey availability seasonally. Wet years support more prey and generally better breeding success. Sightings are possible in all seasons, though owls are most vocal and active during the breeding season. Seethe California wildlife guidefor more.

How to Identify a Great Horned Owl

Great Horned Owls are California's largest common owl and are distinctively recognizable by multiple features. 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. California's Great Horned Owls display a range of color morphs from pale grayish-brown to darkish russet-brown, with darker streaking throughout. The plumage color often correlates with local environment, with darker birds in coastal forests and lighter birds in arid regions. 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 30 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. 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 California's quieter wilderness areas, this call carries impressive distances through forest and across canyons.

Where Sightings Concentrate in California

Great Horned Owl sightings in California concentrate in specific habitat types and protected areas. Redwood National and State Parks in northern California provide accessible old-growth forest habitat. Yosemite National Park and other Sierra Nevada parks offer excellent opportunities, particularly in spring and early summer. Mount Shasta area provides accessible mountain habitat. Point Reyes National Seashore and other coastal protected areas host populations. The Central Valley's remaining riparian woodlands, particularly protected areas along the Sacramento River, concentrate owls. San Francisco Bay area parks and wilderness areas, including Ohlone Regional Wilderness and Sunol Regional Wilderness, host accessible populations. Southern California's desert parks including Joshua Tree National Park provide desert habitat viewing opportunities. The Anza-Borrego Desert provides excellent spring sighting opportunities. Urban and suburban parks with mature trees in Sacramento, San Francisco, Los Angeles, San Diego, and other cities support accessible populations. The best viewing strategy involves visiting suitable habitat during breeding season from November through March and listening for territorial calling. Nocturnal visits to parks and forests yield reliable sightings through vocalizations. Daytime observations require searching dense trees where roosting owls hide in shadows. Small songbirds mobbing owls provide clues to roosting locations. Evidence of presence includes regurgitated pellets beneath roosting sites and whitewash on branches. Visit/wildlife/californiafor more wildlife viewing opportunities.

Typical Behavior and Diet

Great Horned Owls in California are fierce nocturnal predators with diets reflecting the state's diverse mammalian and avian fauna. In woodlands, the primary prey consists of cottontail rabbits and tree squirrels. In desert regions, jackrabbits and kangaroo rats provide substantial meals. Voles, mice, rats, flying squirrels, and other rodents supplement the diet regularly. Opossums and raccoons are taken occasionally. Great Horned Owls will hunt skunks, making them one of the few animals that regularly consume these strongly defended prey. Waterfowl including ducks and geese provide seasonal prey. Crows, jays, and other large birds are taken when encountered. The hunting strategy involves perching silently on prominent branches and listening for prey movements below. The owl's exceptional night vision and asymmetrical ear placement provide unparalleled hunting advantage. Once prey is located, the owl dives at speeds exceeding 150 miles per hour, using powerful talons to capture and crush prey. Great Horned Owls are fierce competitors for food and territory, and they will attack and kill other large birds of prey including Bald Eagles and Red-tailed Hawks. Roosting behavior involves spending daylight hours perched in dense trees, typically in evergreen cover where the dark bird blends with shadows. California's milder climate reduces the energy demands of roosting compared to colder regions.

Coexistence and Safety

Great Horned Owls in California 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 when eggs are present or chicks are being raised, is respectful practice. 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. California has no state threatened or endangered listing for the species, though some regional populations may be declining due to habitat loss. Vehicle collisions can occur where owls hunt along roadsides in valleys and rural areas. Rodent poison used for pest control can accumulate in owl tissues, though this threat remains relatively minor. Loss of old-growth forest and riparian habitat reduces available nesting sites in some regions. California's climate change and increasing fire frequency pose emerging threats to forest-dependent populations. Coexistence is straightforward: enjoy observing these remarkable predators while maintaining appropriate distance from nesting areas and recognizing their role as apex predators in California's ecosystems.

Species Confusion in California

Several owl species in California might be confused with Great Horned Owls, though distinctive features make identification reliable with observation. The Barn Owl is pale-faced and lacks ear tufts, with a heart-shaped facial disc and much lighter plumage. Barn Owls prefer open grasslands and agricultural areas. 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. Western Screech-Owls are tiny, only 7 to 10 inches tall, with ear tufts but living in different habitats. Flammulated Owls are very small owls occurring in mountain ponderosa pine forests. Northern Pygmy-Owls and Elf Owls are tiny. The Spotted Owl is medium-sized, lacks ear tufts, and has dark eyes. Size alone eliminates most confusion, with Great Horned Owls being California's largest common owl in most regions. Ear tuft prominence, eye color, facial expression, and habitat use further distinguish Great Horned Owls from all other species.

Frequently Asked Questions

When are Great Horned Owls most active in California? Great Horned Owls hunt primarily during the first few hours after sunset and again in the hours before dawn. They may be active throughout the night, but hunting activity peaks during twilight hours. What season is best for observing Great Horned Owls in California? The breeding season from November through March offers the best viewing opportunities due to increased vocal activity and more predictable roosting patterns. Winter offers clear skies and favorable weather for viewing in many regions. Are Great Horned Owls a threat to pets in California? Yes, small dogs and cats left outside at night can potentially be taken by Great Horned Owls. These powerful predators hunt mammals up to rabbit size. Securing pets indoors at night protects them from predation. Why do Great Horned Owls breed so early in California? Early breeding allows young to fledge in late spring and early summer when prey populations peak, giving fledglings the best chance to develop hunting skills during abundant food availability. Learn more about California wildlife at/wildlife/californiaand explore/wildlife.

Plan your trip

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

See the month-by-month sighting calendar.

When to go

Plan your great horned owl sighting in California

255,265 verified great horned owl records have been logged in California, most recently in 2026. See the GBIF records.

Where to look in California

Alcatraz Island · Wildlife Watching, Birdwatching · Find hotels
Cabrillo National Monument · Wildlife Watching, Birdwatching · Find hotels
Channel Islands National Park · Wildlife Watching, Birdwatching · Find hotels
Death Valley National Park · Wildlife Watching, Birdwatching · Find hotels
Devils Postpile National Monument · Wildlife Watching · Find hotels
Golden Gate National Recreation Area · Wildlife Watching, Birdwatching · Find hotels
Southeast Farallon Island (Farallon Islands NWR, restricted access) · 446 species recorded
Pt. Pinos--general (sea & shore Coral to Jewell, Crespi Pond & cypresses) · 372 species recorded
Furnace Creek Ranch--The Ranch at Death Valley · 368 species recorded
San Clemente Island (please use more precise location) · 364 species recorded
Andrew Molera SP--Big Sur River mouth · 363 species recorded
Arcata Marsh and Wildlife Sanctuary · 344 species recorded

Birding hotspots via eBird (Cornell Lab).

Recent great horned owl sightings

Badger Lake Spur, Oakhurst US-CA 37.72867, -119.14952 · 2026-07-20 09:51 · 1 seen
Chino Creek Wetlands · 2026-07-20 07:02 · 2 seen
Sacramento Reg Wastewater Treatment Plant (limited access) · 2026-07-20 06:56 · 3 seen
Palo Corona RP--Rancho Cañada & South Bank Trail · 2026-07-20 06:43 · 1 seen
95648, Lincoln US-CA 38.82599, -121.42126 · 2026-07-20 06:00 · 1 seen

Planning a trip to see great horned owl? Find places to stay near Alcatraz Island on Booking.com.

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