Philippe Clement / Flock of Jackdaws (Corvus monedula) congregating at dusk at communal roost, Belgium, December.

Philippe Clement / Jackdaw (Corvus monedula) pulling up a peanut string to feed, Belgium

Nick Upton / Flock of Jackdaws (Corvus mondedula) taking off from their roost site, Gloucestershire, England, UK, December.

Eric Dragesco / Wild Snow leopard (Uncia uncia) feeding on a kill hidden behind a rock, with a Eurasian magpie (Pica pica) in the foreground, Altai Mountains, Mongolia, February.

Mark Hamblin / Raven (Corvus corax) adult calling from rock in mountain habitat, Scotland, UK. November. Third place in British Birds Bird Photograph of the Year competition 2016.

Bence Mate / Hooded crow (Corvus cornix) mobbing Buzzard (Buteo buteo) Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary. January.

Bence Mate / White tailed sea eagle (Haliaeetus albicilla) and Hooded crow (Corvus cornix) in snow, Lake Csaj, Kiskunsagi National Park, Hungary. January.

Bence Mate / Jay (Garrulus glandarius) jumping into the air, Pusztaszer, Kiskunsagi National Park, Hungary, November.

Bence Mate / Juvenile White tailed eagle (Haliaeetus albicilla)in flight, with Hooded crow (Corvus cornix) mobbing it, Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary. January.

David Pattyn / Alpine chough (Pyrrhocorax graculus) group in flight, Bernese Alps, Switzerland, November

Jussi Murtosaari / Common magpies (Pica pica) perched on frost covered branches, Jvaskyla, Finland, January.

Staffan Widstrand / Raven (Corvus corax) mobbing Gyrfalcon (Falco rusticolus), Hornoya Island, Varanger Peninsula, Norway, March.