The research was conducted in Taudaha Lake situated in the southern corner of the Kathmandu valley, midway to Dakshina kali. An attempt has been made to survey the existing bird species in eight months, from September 2007 to April 2008. The main objective of the study was to asses the number of migratory birds in different seasons. Direct observation method was used besides random questionnaire survey and literature review. Observations were done by using binoculars. A total of forty species of the birds were estimated in the study area out of which seventeen were residential, two were summer migrants and twenty one were winter migrants. One of the new species, Bar headed goose, Anser indicus, was recorded in the study area.