animal animals atra belgian belgium bird birds break britain british cold common coot coots cygnus eurasian europe european evening fauna flock forage foraging france freezing french frost frozen fulica gap German germany great group groups hole ice ice-hole icily icy in Kingdom lake lakes mute nature netherlands olor open pond rest resting sunset sunsets swan swans swim swimming the uk United wak water waterbird waterbirds waterfowl waters wildlife winter wintertime