Fabrice Cahez / Red-billed chough (Pyrrhocorax pyrrhocorax) perched on rock with one on right calling, Gorges du tarn, France, January.

Nick Garbutt / Pair of Red-billed choughs (Pyrrhocorax pyrrhocorax) on a rocky garden wall. High mountain village, Ladakh, northern India.

Guy Edwardes / Red billed chough (Pyrrhocorax pyrrhocorax) in flight, Great Saltee, County Wexford, Republic of Ireland, June.

Mike Read / Red-billed chough (Pyrrhocorax pyrrhocorax) in flight, South Stack Cliffs RSPB Reserve, Holyhead, Anglesey, Wales, UK, April.

Rosl Roessner/ BIA / Alpine Chough (Pyrrhocorax pyrrhocorax) trio, Morocco

Loic Poidevin / Red billed chough (Pyrrhocorax pyrrhocorax) in field, Island of Islay, Scotland, UK, September

David Tipling / Red-billed chough (Pyrrhocorax pyrrhocorax) head portrait, Belchite Spain July

David Tipling / Red-billed chough (Pyrrhocorax pyrrhocorax) Belchite Spain, July

David Kjaer / Chough (Pyrrhocorax pyrrhocorax) Spain, July

Fabrice Cahez / Red-billed chough, (Pyrrhocorax pyrrhocorax) flock in flight, Gorges du Tarn, France, March.

Fabrice Cahez / Red-billed choughs (Pyrrhocorax pyrrhocorax) Gorges du Tarn, France, December

Fabrice Cahez / Red-billed choughs (Pyrrhocorax pyrrhocorax) Gorges du Tarn, France, December