Owl is Looking Somewhere, Turning Its Head. Sitting on a Branch of Tree in Zoo. Captive Bird in Aviary Looks Sad or Sleepy. Binocular Vision. Green Trees’ Leaves. Animal Among the Trees in Summer Day. Observation of Animals’ Behavior, Solitary and Nocturnal Birds of Prey. Net, Cage is on a Background. Tour to Opole, Tourism in Poland.