Guy Edwardes / Two people silhouetted in front of Skogafoss waterfall in southern Iceland, June 2009

Oriol Alamany / Australian kestrel (Falco cenchroides) on seacliff, Malabar Hill, Lord Howe island, Lord Howe Island Group UNESCO Natural World Heritage Site, New South Wales, Australia

Oriol Alamany / Australian kestrel (Falco cenchroides) on a seacliff, Malabar Hill, Lord Howe island, Lord Howe Island Group UNESCO Natural World Heritage Site, New South Wales, Australia

Hougaard Malan / Young male jumping off a seacliff on a sunny day. Arniston/Waenhuiskrans, Western Cape, South Africa. February 2012. Non-ex.

Fergus Gill / Herring gull (Larus argentatus) pair with a seacliff in the background. Fowlsheugh, Scotland, May .

Oriol Alamany / Two Least auklets(Aethia pusilla) on seacliff, Saint Paul Island, Pribilof Islands, Alaska, USA