NEW PRINCIPAL INVESTIGATOR SOUGHT to continue 30-year study of breeding Tree Swallows in southern Ontario. Over 200 boxes in 3 sites differing in local climate and food supply. Huge data-base of breeding stats for marked birds. Local accommodation and volunteer assistants available. For full details, see http://www.bsc-eoc.org/longpoint/index.jsp?lang=EN&targetpg=lpbotres.