waterfowl inhabit the area around the wuhle river in winter. berlin, germany

duck bird grass animal aix galericulata anas platyrhynchos berlin cygnus olor ducks fall foliage frost frozen germany green hiking ice january landscape leaf leaves living mallard mandarin mute swan natural nature river season shores snow snowflake snowy tree water weather winter young outdoor wildlife wild waterfowl inhabit area around wuhle birds