This study was conducted to clarify the characteristics, and proper way of protection and management of bird community in Geum river estuary from Nov. 1997 to Oct. 1998. Water was the most dominant factor of habitats. And there were cultivated area, forest, constructed area, reed bed and tidal fiat in study area. Total 104 bird species were recorded in Geum river estuary. Maximum 46 species in Apr. and 51,002 individuals in Feb. were observed. Dabbling ducks used islands and shallow area of river, and tidal flat. Gulls and waders were distributed in estuary and geese were in islands of the upstream and cultivated area of Sipjadeul. For the maintenance, protection and management of bird community in Geum river estuary, diversity of natural habitats, such as, tidal flat, cultivated area, islands and reed bed, should be maintained.