Bence Mate / Great egret (Ardea alba) and Grey heron (Ardea cinerea) fighting over a fish, Lake Csaj, Kiskunsagi National Park, Hungary

Erlend Haarberg / Two Mountain hares (Lepus timidus) fighting, Sor-Trondelag, Norway, April

Erlend Haarberg / Two Common redpoll (Carduelis flammea) in flight fighting, Norway, May

Erlend Haarberg / Two male Bramblings (Fringilla montifringilla) fighting in flight, Norway, May

Erlend Haarberg / Two Mountain hares (Lepus timidus) fighting, Sor-Trondelag, Norway, April