1. Wildlife Conservation Society, 2300 Southern Boulevard, Bronx, NY 10460, USA
2. PEER Associates, 836 Snipe Ireland Road, Richmond, VT 05477, USA
3. Department of Biological Sciences and Center for Urban Ecology, Louis Calder Center—Biological Field Station, Fordham University, PO Box 887, Armonk, NY 10504, USA
4. Lifelong Learning Group Center of Science and Industry, 333 West Broad Street, Columbus, OH 43215, USA