This study is intended to use statistical methods for analyses of how a final waste disposal influences its surrounding environment. The influence is investigated from the viewpoint of birds around the final waste disposal site and vicinity. We observed the ecology of birds using a strip transect sampling. The bird data were classified according to cluster analysis and analyzed using principal component analysis. We newly defined a measure of plant community similar to the vegetation authenticity based on principal component space. We also compared the time series with variations of the observation area.
