Hermann Brehm / Siberian Jay (Perisoreus infaustus) alighting on a branch. Hamra, Sweden, September.

Hermann Brehm / A Jay (Garrulus glandarius) and Great Spotted Woodpecker (Decdrocops major) fighting on a tree stump. Bavaria, Germany, November.

Edwin Giesbers / Portrait of Eurasian Jay (Garrulus glandarius) showing colouring on cheek and primary flight feathers. The Netherlands, June.

Orsolya Haarberg / Jay (Garrulus glandarius) bathing, Hungary, May

Markus Varesvuo / Siberian Jay (Perisoreus infaustus) perched on snow covered pine tree, Kuusamo, Finland, February

Rolf Nussbaumer / Green Jay (Cyanocorax yncas) perched on blooming Huisache tree (Acacia farnesiana) Dinero, Lake Corpus Christi, South Texas, USA

Marie Read / Blue Jay (Cyanocitta cristata) perched with red berries in winter, New York, USA

Marie Read / Blue Jay (Cyanocitta cristata) collecting acorns to store over winter, New York, USA

Stephen Dalton / Jay {Garrulus glandarius} in flight in oak woodland, UK

Mike Wilkes / Jay (Garrulus glandarius) feeding on acorn, Warwickshire, UK

Wild Wonders of Europe / Widstra / Eurasian jay (Garrulus glandarius) perched on branch in snow, Flatanger, Norway, November 2008

Wild Wonders of Europe / Zacek / Siberian jay (Perisoreus infaustus) landing, Kitkajoki, Kuusamo, Oulanka National Park, Finland, February 2009