Erlend Haarberg / Black-legged kittiwakes (Rissa tridactyla) fighting mid air, Hornoeya. Finnmark, Norway, July.

Andy Trowbridge / Muskox (Ovibos moschatus) running in snow. Dovrefjell National Park, Norway. October.

Andy Trowbridge / Two juvenile Chamois (Rupicapra rupicapra) standing together. Bernese Alps, Switzerland. August.

Andy Trowbridge / Two juvenile Chamois (Rupicapra rupicapra) standing together. Bernese Alps, Switzerland. August.

Andy Trowbridge / Two juvenile Alpine ibex (Capra ibex) standing in green grass. Bernese Alps, Switzerland. August.

Erlend Haarberg / Black-legged kittiwakes (Rissa tridactyla) fighting mid air, Hornoeya. Finnmark, Norway, July.

Erlend Haarberg / Black-legged kittiwakes (Rissa tridactyla) fighting mid air, Hornoeya. Finnmark, Norway, July.

Erlend Haarberg / Black-legged kittiwakes (Rissa tridactyla) fighting mid air, Hornoeya. Finnmark, Norway, July.

Erlend Haarberg / Great black-backed gull (Larus marinus) Hornoya. Finnmark, Norway, July.

Erlend Haarberg / Great black-backed gull (Larus marinus) on rock, Hornoeya. Finnmark, Norway.

Erlend Haarberg / Herring gull (Larus argentatus) two chicks with adult in the background, Hornoya, Vardo municipality, Varanger-peninsula, Finnmark, Norway. July.

David Pattyn / European red fox (Vulpes vulpes crucigera) two foxes backlit at dusk. The Netherlands. July.