Charlie Summers / Three Snow Geese banking and gliding in preparation for a landing (Chen caerulescens). Bosque del Apache, New Mexico, January.

Brent Stephenson / Atlantic Yellow-nosed Albatross (Thalassarche chlororhynchos) banking in flight while looking down. Tristan da Cunha, Tristan Group, South Atlantic, March.

Ashley Cooper / La Calahorra Castle in La Calahorra with spring flowers, at the foot of the Sierra Nevada mountains in Andalucia, Spain.

Ashley Cooper / Coastal flood defences in the Sunderbans, a low lying area of the Ganges Delta in Eastern India, that is very vulnerable to sea level rise. The building behind the embankment is lower than the high ti...

Ashley Cooper / Coastal flood defences in the Sunderbans, a low lying area of the Ganges Delta in Eastern India, that is very vulnerable to sea level rise. The houses behind the embankment are lower than the high tid...

Ashley Cooper / Banking and financial sector buildings at Canary Wharf, London, England, UK, December 2008.

Ashley Cooper / The Lloyds insurance building in the City of London, England, UK, December 2009.

Roger Powell / Juvenile Montagu's harrier (Circus pygargus) banking & flying past. Guerreiro, Castro Verde, Alentejo, Portugal, May.

Charlie Summers / Cliff Swallow (Petrochelidon pyrrhonota) banking in flight. Aurora, Colorado, USA. May.

Juan Carlos Munoz / Bearded vulture (Gypaetus barbatus) in flight, banking. Simien National Park, Ethiopia, East Africa.

Brent Stephenson / Adult white-capped Albatross (Thalassarche steadi) in banking flight over a blue sea, showing upperwing. Off Stewart Island, New Zealand, November.

Sven Zacek / White Tailed Sea Eagle (Haliaeetus albicilla) in banking flight. Norway, Europe, August.