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A photo of a Siberian Jay (Perisoreus infaustus)
Siberian Jay

Siberian Jay

Perisoreus infaustus

The Siberian jay, a small member of the corvid family, is a bird of subtle charm. Its plumage is a muted grey-brown, complemented by a darker brown crown and a paler throat. A distinctive rusty-red hue adorns the wing-bend, undertail coverts, and tail sides. Both sexes share this similar coloration, blending seamlessly into the North Eurasian coniferous forests they call home.

Identification Tips

When attempting to identify the Siberian jay, look for its soft, downy feathers, which provide insulation against the bitter cold. The bird's inconspicuous coloration is an adaptation for predator evasion. Its bill and legs are black, and it has a yellowish rump. The bird measures approximately 30 centimeters in length and weighs between 75 to 90 grams.


The Siberian jay thrives in the dense, mature coniferous forests of lowlands and foothills. It shows a preference for spruce forests, where the dense foliage offers protection from predators.


This bird's range extends across Scandinavia to northern Russia and Siberia. It is a resident species, with some individuals moving southward in winter, particularly in the eastern part of its range.


Siberian jays exhibit a complex social structure, living in small flocks dominated by a breeding pair. These flocks may include multigenerational offspring and unrelated immigrants. The birds are territorial and aggressive towards non-related intruders, with a hierarchy that sees males dominant over females and breeders over non-breeders.

Song & Calls

The Siberian jay's vocal repertoire is diverse, ranging from soft notes to whistling and trilling sounds. It can also mimic other birds' songs. Its alarm calls are nepotistic, serving to warn kin of approaching predators.


Monogamous by nature, Siberian jays mate for life and are known for their mate-guarding behavior. They build their nests in pine or spruce trees, lining them with a variety of insulating materials. Clutch sizes vary, and the female incubates the eggs while the male provides food. Offspring may remain with the parents for extended periods before dispersing.

Similar Species

The Siberian jay can be confused with other jays due to its size and habitat, but its unique social behavior and vocalizations set it apart.

Diet and Feeding

An omnivorous bird, the Siberian jay's diet includes berries, seeds, insects, and spiders. It also feeds on carcasses and stores food in hidden caches for winter survival.

Conservation status

The International Union for Conservation of Nature (IUCN) has classified the Siberian jay as "Least Concern" due to its wide range and large population. However, habitat degradation poses a threat to some populations, particularly in Europe.

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Siberian Jays on Birda


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