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Great Horned Owls Calling

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 voles... read more »

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Topics & Themes:  vocalization

Great Horned Owl Family in Autumn

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 have... read more »

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Great Horned Owl Duet

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 lower in... read more »

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Topics & Themes:  vocalization

Great Horned Owls Nest

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 month of... read more »

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Topics & Themes:  ecology, nesting

Great Horned Owl III

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 on its... read more »

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Topics & Themes:  nesting

Great Horned Owl Family V

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 Great... read more »

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Great Horned Owl - Hungry Young

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 egg a... read more »

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Topics & Themes:  nesting

Great Horned Owl Family in Summer

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, they've... read more »

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Topics & Themes:  nesting

The Great Horned Owl Nest

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 climb out... read more »

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Topics & Themes:  nesting

Flammulated Owl

The Flammulated Owl is a study in camouflaged grays and browns, with cinnamon-brown shoulder straps and large brown eyes. This astute aerial predator stands a little more than six and a half inches tall, from its sharp-clawed feet to its stubby, ear-like tufts. It winters in southern Mexico or... read more »

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Topics & Themes:  migration

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