The bird species and population size at four sampled fish ponds were recorded in Hongzehu Lake Wetland(33°06'-33°07'N,118°29'-118°30'E)in two winters(2005 and 2006),and one spring(2006).The size of four fish ponds was 157 hm².Total of 19 species of wader birds were recorded during the study period,10 species in winter and 15 species in spring respectively.The quantity of wader birds occurred in winter was much higher than that in spring.The population size of the four major species varied dramatically during their staying period,which indicates that they are on the way of migration.Two behaviors,resting and foraging,were occurred observed at naked mud and shallow water area.The special fishing pattern at the ponds provides winter habitats for the waders.