A deer on a hillside calling out while rutting season with a backdrop of distant mountains, Red deer (Cervus elaphus), Wildpark Aurach, Austria, Europe

austria cervidae cervus elaphus deer europe europe's mammal mammalia mammalian no people pecora wildlife animal animal behaviour animal sound animals in the wild behaviour call captive captive animal captivity countryside deserted empty enclosure european fauna game game animal game park game reserve in heat in rut landscape landscape photo landscape shot mating behavior mating behaviour mating period mating season mating time mountain mountainous nature no one nobody open air red deer reproduction rut rutting rutting season scenery shout social behavior social behaviour uninhabited wild animal wildlife wildlife park wildlife photography