Donald M. Jones / Northern Pintail (Anas acuta) males flying with female in spring courtship display, Montana

Phil Savoie / Swift (Apus apus) flock screaming in flight against blue sky and clouds, Monmouthshire, Wales, UK, July.

Angelo Gandolfi / Carrion Crows (Corvus corone) mobbing a Bearded vulture (Gypaetus barbatus) Scala di St. Regina gorges. Corte, Parc Naturel Regional de Corse, Corsica island, France, January

Angelo Gandolfi / Bearded vulture (Gypaetus barbatus) in flight over rocky outcrops, Monte Incudine, Parc Naturel Regional de Corse, Corsica island, France, February

Donald M. Jones / Canada Goose (Branta canadensis) flying in formation, central Montana

Andrew Parkinson / Fulmar (Fulmarus glacialis) rear view of bird hanging in air over steep cliffs, Shetland Islands, Scotland, UK. HIGHLY COMMENDED - Animals in their environment - Wildlife Photographer of the Year c...

John Downer / Barnacle geese {Branta leucopsis} in flight, imprinted geese trained to fly beside car, captive, UK

Angelo Gandolfi / Bearded vulture (Gypaetus barbatus) at Los Mallos de Riglos cliffs, Aragon, Spain.

Jim Brandenburg / Snow Goose (Chen caerulescens) flock flying in formation during migration, with individuals of both color phases, California

Thomas Mangelsen / Sandhill Crane (Grus canadensis) trio flying, North America

Jim Brandenburg / Tundra Swan (Cygnus columbianus) trio flying against cloudy sky, Minnesota

Angelo Gandolfi / Southern caracara (Caracara plancus), two flying over rock formation. Chapada dos Guimaraes, Mato Grosso, Brazil.