Winter bird survey in Youxi county of Fujian Province.

The bird resources of Youxi County were surveyed by using the method of mechanical dotting, plot sampling and line transects. Global Positioning System was used for the bird fauna distribution, and Fourier non-linear statistics model was employed to analyze the survey data and estimate the population amount of dominant bird species. The field survey distance is 1 227 km and 27 663 individuals of 201 bird species were recorded. The basic situation of the bird resources was kept abreast with, which provides some references on wildlife management in Youxi County.