The purpose of this survey study is to test the theory of landscape element of landscape ecology that relates the landscape elements to bird communities for bird species at the estuary of Danghsui River in Taiwan. The independent variables such as the areas of wetland, rice paddy, small woods, farm, building, etc., were defined generally as landscape elements. The dependent variables were defined generally as birds’ rich index, which includes the richness, evenness, and the diversity of bird’s communities. This study find Aero-photography map (1/5000) provides detailed land uses, which can trace out the scatters of patches and explain more variances of bird’s diversity, richness and evenness. Further studies related to the urban and the rural areas are needed due to the different land use patterns. Especially in the rural areas of Taiwan, the information of landscape ecological is in a critical position.