1. U.S. Fish and Wildlife Service, Division of Migratory Bird Management, 500 Gold Avenue SW, Albuquerque, NM 87103 U.S.A.
2. Department of Environmental Science and Management, Humboldt State University, Arcata, CA 95521 U.S.A.
3. U.S. Fish and Wildlife Service, Division of Migratory Bird Management, P.O. Box 2530, Corvallis, OR 97339 U.S.A.
4. Eagle Environmental, Inc., Santa Fe, 30 Fonda Road, Santa Fe, NM 87508 U.S.A.
5. Natural Resource Geospatial, Yreka, CA 96097 U.S.A.
6. U.S. Fish and Wildlife Service, Division of Migratory Bird Management, 2105 Osuna Road NE, Albuquerque, NM 87113 U.S.A.
7. Arizona Game and Fish Department, 5000 W. Carefree Highway, Phoenix, AZ 85086 U.S.A.