Dong Lei / Ground tit (Pseudopodoces humilis) in hole in cracked clay. Sanjiangyuan National Nature Reserve, Qinghai Province, Qinghai-Tibet Plateau. August.

Konrad Wothe / Alpine chough (Pyrrhocorax graculus) group of three in snow, Karwendel, Alps, Upper Bavaria, Germany. April

Konrad Wothe / Alpine chough (Pyrrhocorax graculus) group of three in snow, Karwendel, Alps, Upper Bavaria, Germany. April

Konstantin Mikhailov / Mongolian ground jay (Podoces hendersoni), Gobi Desert, Mongolia, August.

David Tipling / Alpine Chough (Pyrrhocorax graculus) on ground, Bernese Alps, Switzerland.

David Tipling / Alpine Chough (Pyrrhocorax graculus) on ground, Bernese Alps, Switzerland.

Ashish & Shanthi Chandola / Ground tit (Pseudopodoces humilis) looking around before hopping out of the frame, Ladakh, India. November.

Staffan Widstrand / Wild Wonders of China / Tibetan ground-tit (Pseudopodoces humilis) Angsai Nature Reserve, Sanjiangyuan National Nature Reserve, Tibetan Plateau, Qinghai, China

Guy Edwardes / Alpine Chough (Pyrrhocorax graculus), Slovenia, February.