Siberian Jay (Perisoreus infaustus) in flight Norway_w_6291
This bird is about the size of a big thrush and has a short beak. It is mainly greyish-brown in colouring, with darker brown cap and brighter rust-coloured markings on rump, edges of tail and leading edges of wings. The tail is quite long.T he Siberian jay is the smallest of the western Palearctic corvids.
The Siberian jay shares its genus Perisoreus with the Sichuan jay of China and the North American Canada jay. However, the Siberian jay differs from the other two species in group living behaviours. Unlike the other two species, where group individuals unrelated to breeding parents may help to provision the young in, the group individuals that accompany a breeding pair of Siberian jays do not help raise the offspring. This absence of extra parental care despite group living may be because cooperative breeding has been selected against in the Siberian jay; probably as an anti-predator strategy to avoid predator attention.
Siberian Jay (Perisoreus infaustus) in flight Norway_w_6291
This bird is about the size of a big thrush and has a short beak. It is mainly greyish-brown in colouring, with darker brown cap and brighter rust-coloured markings on rump, edges of tail and leading edges of wings. The tail is quite long.T he Siberian jay is the smallest of the western Palearctic corvids.
The Siberian jay shares its genus Perisoreus with the Sichuan jay of China and the North American Canada jay. However, the Siberian jay differs from the other two species in group living behaviours. Unlike the other two species, where group individuals unrelated to breeding parents may help to provision the young in, the group individuals that accompany a breeding pair of Siberian jays do not help raise the offspring. This absence of extra parental care despite group living may be because cooperative breeding has been selected against in the Siberian jay; probably as an anti-predator strategy to avoid predator attention.