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Great Horned Owl (Bubo virginianus)

Bubo virginianus

Related Shows

Great Horned Owl at nest with chicks

The Great Horned Owl Nest

March 1, 2022 When Great Horned Owl eggs hatch, the downy owlets are the size of newborn chickens. Their mother broods them day and night. A few weeks later, the owlets can be left alone while both adults resume hunting at twilight. Great Horned Owl young remain in the nest for about six weeks, then
Imprint of bird's wings in snow where it touched down catching prey

Bird Tracks in the Snow

February 10, 2022 Look for the stories birds tell with their tracks in the snow. A crow swaggers, leaving right-and-left steps much as a walking human would. Juncos under a birdfeeder leave a hopping pattern of tiny footprints in side-by-side pairs. Look for beak marks, where a bird picked up a choice
Great Horned Owl in nest covered with snow

Great Horned Owls Nest

January 18, 2022 High in a leafless cottonwood, a female Great Horned Owl incubates two eggs. As light snow falls on her back, her mate roosts nearby. Since December, this pair has been hooting back and forth regularly at night. Great Horned Owls nest in winter, because the owlets, which hatch after a
Great Horned Owl in flight toward the camera

The Ferocious Feet of the Great Horned Owl

July 8, 2021 Great Horned Owls excel at nocturnal hunting, thanks to their acute senses and stealth — but their feet let them secure squirming prey. The outermost of their four toes can rotate forward or backward, an advantage that most other birds of prey lack, letting them capture animals as large as
A Great Horned Owl fledgling perched on a mossy branch

How Nestlings Leave the Nest

June 12, 2021 Young birds leave their nests in different ways. Some shuffle tentatively along the nearest branch and practice flapping their wings, while others take the "big leap." Which path they take depends upon their species and the location of the nest. Young Great Horned Owls clamber out of the
Great Horned Owl nestling

Great Horned Owl - Hungry Young

June 5, 2021 Great Horned Owls are found in more varied habitats than any other owl in North America. These owls often nest in trees, but may also nest on cliffs in arid areas far from trees. They nest early in the year, even in the dead of winter. The young hatch a month later, vocalizing inside the
Great Horned Owl fledgling

Great Horned Owls Calling

November 20, 2020 A fledgling Great Horned Owl calls to be fed. Judging from the young bird's persistence, the parents seem to be responding only with calls, not with food. These entreaties can go on for weeks. Both parents let the fledgling know that it's time for him to feed himself. They've been bringing
Great Horned Owl juvenile

Great Horned Owl Family in Summer

July 15, 2020 In late July, the Great Horned Owl chicks that we have been following are four and a half months old, and must fend for themselves much of the time. The young birds continue to learn valuable lessons by watching the adults hunt. Their first hunting forays were clumsy. But by late July
Great Horned Owl

Voices and Vocabularies - Great Horned Owls

June 13, 2020 Great Horned Owls have a lot to say! When a pair of Great Horned Owls calls in a duet, the female usually hoots first, and the male replies at a lower pitch. Great Horned Owls may also pierce the darkness with an eerie shriek, which may signal a hungry owlet begging for food or a female
Great Horned Owl juvenile

Great Horned Owl III

May 8, 2020 This Great Horned Owlet - about 2-1/2 months old and already as big as its parents - is quite well feathered, although its underparts remain downy. Its wing and tail feathers are developing nicely, and it has begun to make short flights. By mid-May, the owlet still relies almost entirely
Great Horned Owl perched on railing in urban area

City Owls

November 20, 2019 Some owls, like Barred Owls and Great Horned Owls, live in the city. As hunters, they find a lot to eat in the city — like rats or squirrels! Both favor urban parks, cemeteries, and botanical gardens — places with big trees — and both roost during the day. The Great Horned Owl, like this
Great Horned Owl

Great Horned Owl Family in Autumn

September 30, 2019 Compared to many birds, Great Horned Owls remain with their parents a long time. They hatched in early March, from eggs laid in late January. By April, both parents were hunting through the night to feed their young. But for the last two weeks, the adults have not fed the young. The owlets
Great Horned Owl

Great Horned Owl Duet

March 10, 2019 The 22-inch Great Horned Owl has two tufts of feathers that stick up from the top of its head. This owl is difficult to see, but it's often heard during dark winter evenings and pre-dawn mornings. A pair of owls may call back and forth or overlap their hoots. The male's call is slightly
Owl pellets

Examining Owl Pellets

February 21, 2019 A roosting owl often leaves visual clues to its whereabouts — a scattering of furry, oval objects below its perch — in the form of pellets. Because owls such as this Great Horned Owl often swallow their prey whole, their digestive system has to deal with bones, fur, and feathers. The owl’s
Red-tailed Hawk on nest with young

Raptor Breeding

April 14, 2018 It's April, but Great Horned Owls have been busy at their nests for two months. Golden Eagles are on their nests as early as the beginning of March. And Red-tailed Hawks (like this one) begin early, too. Why do these birds of prey nest so early? It takes a long time to raise a baby hawk or
Rocco with owl

Nurturing a Love of Birds

September 12, 2015 We're looking for teachers who use BirdNote in the classroom. Share your lesson plan or find one to use. Learn more. Then submit your own plan. In classrooms around the country, teachers who love birds and nature are introducing children to a source of life-long enjoyment. Emily Czerwonka
Emily Clark, 4th grader at School in the Woods

Emily Hears Great Horned Owls Call

July 23, 2013 I’m Emily, a fourth-grader at School in the Woods in Colorado Springs, Colorado. I love the Great Horned Owl’s call. Did you know that Great Horned Owls almost always hunt at night? First, they locate their prey from small movements on the ground. Next, they dive down at the perfect moment
Great Horned Owl

Paul Bannick - Owls and Woodpeckers

October 16, 2011 Photographer and naturalist Paul Bannick, whose photos appear frequently on this website, has spent a lot of time observing woodpeckers and owls, including this Great Horned Owl. Paul notes: "Woodpeckers are called 'keystone' species...a species which alters its habitat to the benefit of
Great Horned Owl perched on snag

Great Horned Owl Menu

August 19, 2010 Great Horned Owls stalk their prey from perches, while gliding on silent wings, even while walking on the ground. Their prey ranges in size from crickets to turkeys. They take skunks, marmots, muskrats, and house cats. Mink and jack rabbits are on the menu, as is the occasional porcupine
Great Horned Owl perched in tree

The Folklore of Owls

October 9, 2009 Thanks to Harry Potter, the owl is flying high. But throughout history, the owl has received mixed reviews. The Greeks believed an owl flying over a battlefield foretold victory, while in other cultures, owls were considered omens of death, prophets of doom. Listen to the story again, and
Great Horned Owl

Great Horned Owl Family V

September 29, 2006 In late September, young Great Horned Owls, now called "juveniles," still roost close together. By mid-October, the juveniles will scatter - or be driven away by the adults - to set up their own territories within a few dozen miles. By age two, they will seek their own mates. Learn about

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