Juan Carlos Munoz / Great egret (Ardea alba) perched in a tree, with an American White Ibis (Eudocimus albus) in flight, Everglades National Park, Florida, USA.

Chris & Monique Fallows / Sooty Albatros (Phoebetria fusca) at sea off South Georgia Island, Antarctica

Markus Varesvuo / Male King eider (Somateria spectabilis) in flight over water, Batsfjord, Norway, March.

Markus Varesvuo / Large flock of Guillemots (Uria aalge) flying, Vardo, Norway, March.

Theo Bosboom / Common blue damselflies (Enallagma cyathigerum) flying over the water to rest on plant stem, in a fen, Hondeven, Holland, July

Theo Bosboom / Common blue damselflies (Enallagma cyathigerum) flying over the water to rest on plant stem, in a fen, Hondeven, Holland, July

David Fleetham / Breaching humpback whale (Megaptera novaeangliae), completely airborne, Hawaii.

Frederique Olivier / Wide shot of Wilson's storm petrels (Oceanites oceanicus) flying around a nesting site amongst rocks, Antarctica.

Peter Cairns / Snow Geese (Chen caerulescens) in flight at sunset, Bosque del Apache, New Mexico, USA, December.

Peter Cairns / Redshank (Tringa totanus) perched on wire fence in field of Lupins, Iceland, June

Peter Cairns / Fulmar (Fulmaris glacialis) in flight over sea at dusk, Svalbard, Norway, August.

Jean E. Roche / Mute swan (Cygnus olor) flock in flight, Longepierre, Bresse, France, April.