The Siberian jay (Perisoreus infaustus) is a bird inhabiting old-growth coniferous taiga forests. ((http://www.jstor.org/pss/3683509)) The Siberian jay is found in north Eurasia. The species has a wide range (estimated global Extent of Occurrence 10,000,000km²) and a large global population (estimated 680,000-1,400,000 in Europe). ((Source: Wikipedia))
Little more is published online about the Siberian Jay. I will do some further research in my local library and update this post at some point.