FILE - In this July 20, 2006 file photo, Juan Klavins checks for parasites on a rare Bicknell's Thrush on the summit of Whiteface Mountain at Lake Placid, N.Y. The U.S. Fish and Wildlife Service says the songbird that breeds atop Adirondack peaks and other Northeastern mountains and winters in the Caribbean may need protection as an endangered species. The Bicknell’s thrush has one of the most limited breeding and wintering ranges of any bird in North America. (AP Photo/Mary Esch, File)