Mark Hamblin / 2020VISION / Visitors watching television screen showing the Dyfi Osprey Project live nest cam, Powys, Wales, UK, May 2012.

Mike Read / Bird watcher and dog on Hookney Tor. Dartmoor National Park, Devon, England, March 2007.

Doug Wechsler / Crowd of people bird-watching, Cape May, New Jersey, USA

Wild Wonders of Europe / Damschen / Black storks (Ciconia nigra) and Grey herons (Ardea cinerea) with a Great egret (Casmerodius albus) in water, with a bird watcher in the distance, Elbe Biosphere Reserve, Lower Saxony, Germany, Septem...

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

Niall Benvie / Bird watcher in a bird hide looking a Common cranes {Grus grus}. Lake Agmon, Israel.

Gerry Ellis / Bird watcher in tropical rainforest, Belize

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