black-headed gull on the shore of a lake, raising its wings to fly from a perch

animal avian background bird birds birdwatching bire black blackheaded bodensee chroicocephalus closeup cold constance direction eye feather feathers fly gull headed its lake look natural nature ornithology ornitology outdoor people perch plumage post raising ridibundus sea seabird seagull shore stand wild wildlife wing wings winter wooden