birds fly at beidaihe wetland

bird animal seabird sea gull waterbird wildlife shorebird flock shore mudflat flight wetland coast wing beak beach ocean birds fly beidaihe qinhuangdao city hebei province china birds group waves fly wildlife water ocean wetland migration migratory resident waders background landscape natural spectacular ecology environmental protection beidaihe qinhuangdao hebei watching spring fall animals flying sky seagull nature beach blue flight flock gull wild sand white