1. Department of Natural Resource Ecology and Management Oklahoma State University 008C Ag Hall Stillwater OK 74078 U.S.A.
2. Department of Biology Augustana College Rock Island IL 61201 U.S.A.
3. Department of Biology Hobart and William Smith Colleges Geneva NY 14456 U.S.A.
4. Current address: Department of Biology Salt Lake Community College 4600 South Redwood Road, Salt Lake City Utah 84123 U.S.A.
5. Department of Biology The University of Montana Western 710 S. Atlantic St. Dillon MT 59725 U.S.A.
6. Worcester Polytechnic Institute Goddard Hall 128, 100 Institute Road Worcester MA 01609 U.S.A.
7. Department of Biological Sciences Arkansas State University State University PO Box 599 Jonesboro AR 72467 U.S.A.
8. Acopian Engineering Center 320 Lafayette College Easton 18042 PA U.S.A.
9. Shaw University 118 E. South Street Raleigh NC 27601 U.S.A.
10. Department of Biology Lafayette College 213 Kunkel Hall Easton 18042 PA U.S.A.
11. Duke University BOX 90328, 9 Circuit Drive Durham NC 27708 U.S.A.
12. Iniciativa para la Conservación de las Aves de América del Norte‐México (NABCI‐México) Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO) Liga Periférico‐Insurgentes Sur, No. 4903, Col. Parques del Pedregal Delegación Tlalpan Distrito Federal 14010 Mexico
13. Current address: Av. La Garita And. 17 #22 Casa 3 Col. Narciso Mendoza Villa Coapa, C.P. Ciudad de México 14390 Mexico
14. School of Biological Sciences Illinois State University Normal IL 61790 U.S.A.
15. University of Washington Gould Hall Box 355740 Seattle WA 98195 U.S.A.
16. Current address: 3010 Remington Ct San Jose CA 95148 U.S.A.
17. Wilmington College 1870 Quaker Way Wilmington OH 45177 U.S.A.
18. Department of Animal, Rangeland, & Wildlife Sciences Texas A&M University‐Kingsville Kingsville TX 78363 U.S.A.
19. Biology Department Washington and Jefferson College 60 S. Lincoln St. Washington PA 15301 U.S.A.
20. Department of Biological Sciences Bloomsburg University 400 E 2nd Street Bloomsburg PA 17815 U.S.A.
21. Department of Biology Villanova University 800 Lancaster Avenue Villanova PA 19085 U.S.A.
22. Biology Department Macalester College 1600 Grand Avenue St. Paul MN 55105 U.S.A.
23. Environmental Science (Biology) Memorial University of Newfoundland Grenfell Campus, 20 University Drive Corner Brook NL A2H 5G4 Canada
24. Principia College 1 Front Gate Road Elsah IL 62028 U.S.A.
25. Current address: 1115 N Pitt St. Alexandria VA 22314 U.S.A.
26. Department of Biological Sciences Old Dominion University Norfolk VA 23529 U.S.A.
27. Department of Biological Sciences Northern Kentucky University Highland Heights KY 41099 U.S.A.
28. Acopian Center for Ornithology Muhlenberg College 2400 Chew St. Allentown 18104 PA U.S.A.
29. Department of Biological Sciences Florida International University 11200 SW 8th St. Miami FL 33199 U.S.A.
30. Current address: 305 Kabler Road Virginia Beach VA 23456 U.S.A.
31. Environment and Climate Change Canada Canadian Wildlife Service 91780 Alaska Highway Whitehorse YT Y1A 5 × 7 Canada
32. Warren Wilson College 701 Warren Wilson College Rd Swannanoa NC 28778 U.S.A.
33. Current address: University of Tampa 401 W Kennedy Blvd. Tampa FL 33606 U.S.A.
34. School of Biological Sciences Louisiana Tech University Ruston LA 71272 U.S.A.
35. BioEco Research and Monitoring Center P.O. Box 452 Hampton IL 61256 U.S.A.
36. Lake Forest College 555 N. Sheridan Rd. Lake Forest IL 60045 U.S.A.
37. Nicholas School of the Environment Duke University 9 Circuit Drive Durham NC 27708 U.S.A.
38. Current address: Department of Environmental Systems Science ETH Zurich Universitatstrasse 16 Zurich 8092 Switzerland
39. Current address: Grupo de Ecología Evolutiva y Demografía Animal, Departamento de Ecología y Recursos Naturales, Facultad de Ciencias Universidad Nacional Autónoma de México Ciudad Universitaria Distrito Federal 04510 Mexico
40. Current address: Environmental Science Program & Biology Department Trinity College 300 Summit Street Hartford CT 06106 U.S.A.
41. Museo de Zoología Alfonso L. Herrera Facultad de Ciencias Universidad Nacional Autónoma de México (UNAM) Avenida Universidad 3000, Circuito Exterior S/N, Delegación Coyoacán, C.P. 04510 Ciudad Universitaria Distrito Federal Mexico
42. Furman University 3300 Poinsett Highway Greenville SC 29613 U.S.A.
43. School of Forest Resources and Environmental Science Michigan Technological University 1400 Townsend Drive Houghton MI 49931 U.S.A.
44. Current address: University of Maine 5755 Nutting Hall Orono ME 04469 U.S.A.
45. University of Wisconsin‐Platteville 1 University Plaza Platteville WI 53818 U.S.A.
46. Wells College 170 Main Street Aurora NY 13026 U.S.A.
47. University of Minnesota Crookston 2900 University Ave Crookston Crookston MN 56716 U.S.A.
48. University of Illinois at Chicago 845 W Taylor St Chicago IL 60607 U.S.A.
49. Biology Department Colorado State University ‐ Pueblo 2200 Bonforte Blvd. Pueblo CO 81001 U.S.A.
50. University of Toronto Scarborough 1265 Military Trail Scarborough Ontario MIC 1A4 Canada
51. Department of Biology Hope College 35 E. 12th Street Holland MI 49423 U.S.A.
52. Centro de Investigaciones Biológicas Universidad Autónoma del Estado de Hidalgo Km 4.5 carr. Pachuca‐Tulancingo s/n, col. Carboneras, Mineral de la Reforma Hidalgo C.P. 42184 Mexico
53. Current address: PO Box 40118, Station Main Whitehorse Y1A 6M7 Yukon Canada