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A bevy of birds hovers over the littoral swamp, at Qinhuangdao, north China's Hebei Province, May 9, 2009. Large flocks of migratory birds from south to north arrive in Qinhuangdao recently, and draw a number of bird-observes from Europe and America to follow to here. Some 200 species of birds are available to observation during May 7th to 13th on the seashore of Qinhuangdao, earning its reputation as one of the world's most ideal site for vernal bird-observation. [Xinhua]