Adult female lesser frigatebirds (Fregata ariel), in aerial combat, Niau Island, Tuamotus, French Polynesia, South Pacific, Pacific

Adult black-legged kittiwake (Rissa tridactyla) in aerial combat against another kittiwake near Alexander Island, Russia, Eurasia

Adult black-legged kittiwake (Rissa tridactyla) in combat with a second kittiwake near Alexander Island, Franz Josef Land, Russia, Arctic Ocean, Eurasia

Chacochachalaca (Ortalis canicollis), aerial combat, Pantanal, Brazil, South America

Chacochachalaca (Ortalis canicollis), aerial combat, Pantanal, Brazil, South America

White-tailed eagle (Haliaeetus albicilla) in aerial combat, Poland, Europe

White-tailed eagle (Haliaeetus albicilla) in aerial combat, Poland, Europe

White-tailed eagle (Haliaeetus albicilla) in aerial combat, Poland, Europe

White-tailed eagle (Haliaeetus albicilla) in aerial combat, Poland, Europe

White-tailed eagle (Haliaeetus albicilla) in aerial combat, Poland, Europe

White-tailed eagle (Haliaeetus albicilla) in aerial combat, Poland, Europe