Tens of thousands migrant birds seek for food on the coastal marsh in Qinghuangdao,north China's Hebei Province, April 13,2006. Affected by temperature drop these days, tens of thousands migrant birds were forced to stay here. They will probably continue to move northward when it turns warmer.
Tens of thousands migrant birds seek for food on the coastal marsh in Qinghuangdao, north China's Hebei Province, April 13,2006.Affected by the temperature drop these days, tens of thousands migrant birds were forced to stay here. They will probably continue to move northward when it turns warmer.