ducks winter in the city pond. ducks overwinter on the freezing river. problems of birds in ice-covered reservoir

animal animals background bath beak beautiful beauty bird birds brown city cold color day drake duck duckling ducklings ducks feathers freezing group ice icecovered lake landscape mallard many natural nature new ornithology outdoor outdoors overwinter park pond pool problems reserve reservoir river season snow swans swim tranquil urban water waterfowl white wild wildlife winter wintering