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The birdUral Owl (Strix uralensis)
2012-11-01 Ural Owl, Novosibirsk Oblast, Russia by Tatiana Bulyonkova from Novosibirsk, Russia, via Wikimedia Commons, licensed under CC BY-SA 2.0
owl

Ural Owl

Strix uralensis

A large, pale grey-brown owl of Eurasian forests, known for its notably long tail and streaked (rather than barred) plumage, and for its fierce defense of nests.

Feather type
Long soft-fringed flight and tail feathers; streaked body feathers
Colours
Pale grey-brown with dark streaking rather than barring
Bird size
Large, ~50-62 cm

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Overview

The Ural Owl is a large forest owl found across a broad swath of Europe and Asia, from Scandinavia through central Europe and across Siberia to Japan. It closely resembles other large grey owls but is set apart by its unusually long tail.

Its plumage is pale grey-brown overall, marked by dark streaking on the underparts rather than the barring seen in some relatives, and its round head lacks ear tufts.

It is well known among European birders for its aggressive nest defense, sometimes striking intruders that approach too closely during the breeding season.

Identifying the Feather

Recognizing the feathers

  • Body feathers are pale grey-brown marked with bold, mostly vertical dark streaking rather than crosswise barring.
  • Tail feathers are notably long relative to body size, a key distinguishing feature of this species among large Strix owls.
  • Flight feathers are broad with soft fringed edges typical of forest owls, for quiet flight.
  • Facial disc feathers are plain pale grey, unmarked, framing dark eyes.

Similar species

  • The notably long tail and streaked (not barred) underparts separate this species from the Great Grey Owl, which is more uniformly mottled, and from the barred-and-streaked pattern of the American Barred Owl, a different but similarly patterned relative found on a different continent.

Plumage & Molt

Plumage

Adults are pale grey-brown overall with bold dark streaking on the underparts and a plain pale facial disc. Sexes look alike, females larger.

Juveniles are downier and more diffusely marked before acquiring the streaked adult plumage.

Molt occurs gradually through summer, with flight feathers replaced in sequence.

Habitat & Range

Habitat & range

Distributed across a broad band of Eurasia, from Scandinavia and central Europe eastward through Russia to the Russian Far East and Japan, in mature mixed and boreal forest.

It is largely non-migratory, holding stable territories year-round.

Behavior & Field Notes

Behavior & field notes

Hunts small mammals and birds from forest perches, often at dusk and through the night.

It is notably aggressive in defense of its nest, and is one of the few owls documented to strike humans who approach too closely during breeding season.

A long, pale grey-brown feather with bold vertical streaking, found in mature mixed or boreal forest across Europe or Asia, is a strong indicator of this species.

Frequently asked questions

What is the key feather clue for the Ural Owl?

Its notably long tail feathers combined with dark vertical streaking rather than barring on the underparts.

Where is this species found?

A broad band of Eurasia from Scandinavia through central Europe and across Russia to Japan.

Does it have ear tufts?

No, like other Strix owls it has a rounded, tuft-less head.

Is this owl known for any particular behavior?

Yes, it is noted for aggressively defending its nest, sometimes striking intruders during the breeding season.