Gerrit Vyn / Birder looking for shorebirds on mudflats, South Korea. October 2013.

David Tipling / Young boy bird watching at Snettisham RSPB Reserve , The Wash, Norfolk, England, UK. Model released.

David Tipling / Young boy bird watching at Snettisham RSPB Reserve , The Wash, Norfolk, England, UK. July 2013. Model released.

David Tipling / Young girl bird watching in woodland in summer Norfolk. July 2011. Model Released

David Tipling / Birdwatchers in Varirata National Park, Papua New Guinea, August 2011

David Tipling / Birders watching dawn flight of Snow Geese (Chen caerulescens) at Bosque del Apache, New Mexico, USA, November 2009

David Tipling / Birdwatchers watching Knots (Calidris canuta) and other waders over the Wash at Snettisham RSPB Reserve, Norfolk, October 2010

Winfried Wisniewski / Arctic Tern (Sterna paradisaea) flying over the head of a bird watcher, Germany

Winfried Wisniewski / Arctic Tern (Sterna paradisaea) on the cap of a bird watcher, Germany

Tom Vezo / Bird watcher, south Padre Island Convention Center, south Padre Island, Texas

Tom Vezo / Bird watcher, south Padre Island convention center, south Padre Island, Texas

Tom Vezo / Bird watchers, south Padre Island Convention Center, south Padre Island, Texas