OhMyOwls

For this page, Pygmy Owl refers to the Eurasian Pygmy Owl, a very small forest owl found across parts of Europe and Asia. It lives mainly in mature coniferous and montane forests and usually nests in natural cavities or old woodpecker holes. Unlike many larger owls, it is often most active around sunrise and sunset, and it may also hunt during the day.

The Eurasian Pygmy Owl feeds on small mammals and small birds and stores food in cavities. Pairs form from autumn into early spring, and the female usually lays about 4 to 7 eggs in April. Incubation lasts about four weeks, and the young normally fledge at about 30 to 34 days. Published longevity data are limited, but a compiled wild maximum of 6 years has been reported.

The Barn Owl is a widely distributed owl associated with open country such as grasslands, marshes, meadows, and agricultural land. It usually hunts at night, flying low over the ground and locating small mammals by sound. During the day it rests in quiet places, and for nesting it commonly uses cavities in trees as well as buildings such as barns and silos.

Breeding varies with food supply and local climate, but clutches can be large. Published nesting data list incubation at about 29 to 34 days and the nestling period at about 50 to 55 days. Barn Owls often begin breeding young, yet survival is difficult in the wild and many birds do not live long; published records still include wild individuals that reached more than 20 years, with a maximum wild record of 34 years.

The Eurasian Eagle-Owl is one of the largest owls in the world. It lives across a broad range in Europe and Asia and uses many habitats, including coniferous forest, mountain country, deserts, river valleys, farmland, grassland, and rocky landscapes. It is especially associated with rocky areas for nesting, but it can also occupy more open country where prey and safe nest sites are available.

This species is mainly nocturnal and is a powerful predator of mammals and birds. It usually holds a territory for long periods and breeds once a year. Published sources describe a typical wild lifespan of about 10 to 20 years, while some individuals have lived much longer, and captive birds have exceeded 60 years. Its longevity after reaching adulthood is one reason it remains a dominant owl across much of its range.

The Great Horned Owl is a large and highly adaptable owl found through much of the Americas. It can live in woodland edges, grasslands, deserts, swamps, marshes, agricultural areas, and even urban settings as long as there are suitable roosting and nesting sites nearby. It is best known for its ear tufts, deep hooting voice, and broad diet, which allows it to use many different landscapes.

Great Horned Owls are usually active at night and often reuse nests built by other large birds, though they also use tree cavities, cliffs, abandoned buildings, and artificial platforms. Published nesting data list a clutch of 1 to 4 eggs, incubation of about 30 to 37 days, and a nestling period of about 42 days. Average life expectancy in the wild is about 13 years, and the longest published wild record is 28 years.

Polar Owl is a common informal name for the Snowy Owl. This species breeds in the Arctic tundra and favors wide, treeless landscapes where it can watch for prey from the ground or from low perches. In winter it may move south into open areas such as fields, dunes, airports, and coastal flats. It is heavily feathered, including on the legs and feet, which helps it live in severe cold.

The Snowy Owl hunts mainly in open country and is active by day as well as by night, especially during the Arctic summer. Reproduction is strongly linked to prey abundance, especially lemmings. In productive years the species can raise larger broods than usual. Published records note a maximum known wild age of 9 years and 5 months, while a captive bird lived for at least 28 years.

The Ural Owl is a large forest owl of northern and eastern Europe and across parts of Russia to East Asia. It is most strongly associated with mature forest, including coniferous, mixed, and deciduous woodland, and it often stays close to openings, boggy forest edges, and other places where hunting is easier. Depending on the region, it may be mostly nocturnal, but published accounts also describe daytime activity during the long northern summer.

Ural Owls usually maintain territories for years and pairs often remain together for long periods. They nest in tree cavities, broken trunks, old stick nests, cliffs, and nest boxes. A typical clutch is 3 to 4 eggs, though breeding success can change greatly from year to year because it depends heavily on prey, especially vole cycles. First-year survival can be low in poor prey years, so published sources emphasize variable survival rather than one single simple lifespan figure.