Mute swans on field in Poland in winter

swan mute swan flock bird field winter frosty cygnus olor poland climate change waterfowl cygnus birdlife wild wildlife birdwatching bird watching ornithology big bird longnecked cob pen large bird waterbird white orange bill group winter flock walk nuisance pest crop countryside overwinter vegetation land bevy migratory beautiful uneasy medium shot real time static shot sunny day morning environment frost nature