panorama of tresetiste lake, in serbia with a grey heron standing. also called ardea cinerea, it is a typical wading bird from

grey heron ardea cinerea standing wading bird fauna feather wildlife lake pond plumage avian adult wild birding animal migratory nature serbia swamp water landmark natural travel serbian jezero tresetiste srbija subotica suboticka pescara voivodina birdwatching ornithology panorama landscape background