Great crested grebes (Podiceps cristatus) fighting, fight over territory, Hesse, Germany, Europe

aggressions aggression aggressive animal behavior animal behaviour animals in the wild animals animal aquatic bird attacking attack position attack aves battles battle behavior behaviour belligerent bird photography birds bird central europe deserted empty europe fauna fighting fight german federal republic germany great crested grebes great crested grebe grebes grebe habitat hessen hesse hessia middle europe natural environments natural environment natural habitat nobody no one no people podiceps cristatus podicipedidae podicipediformes postures posture territorial behaviors territorial behavior territorial behaviour territorial fights territorial fight territoriality territories territory uninhabited water birds water bird waterfowl wild animals wild animal wildlife photography wildlife