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Muldavin, E. Senior Research Scientist New Mexico Natural Heritage Program UNM, 851 University Blvd. SE, Suite 101, Albuquerque, NM 87131 (505)272-3545

Punter, C. Elizabeth. Special Projects Botanist, Manitoba Conservation Data Centre. Personal communication.

Wagner, W.L., and D. Sabo. No date. Status report for Sclerocactus mesae-verdae. Unpublished report.

Skully, R. [In press]. A field study of the golden-winged warbler in the Pequannock watershed, Sussex County, New Jersey. Proc. Linnaean Soc.

Christian, D. P. Dept. of Biology. Life Science Building. University of Minnesota-Duluth. Duluth, MN

Knight, Paul. ND. New Mexico Natural Heritage Program personal communication with the Colorado Natural Heritage Program.

Price, A. Texas Biological and Conservation Data System, Austin, TX. Personal communication.

Weisenberger, M.E. Refuge Biologist, San Andres National Wildlife Refuge. P.O. Box 756, Las Cruces, NM 88004-0756. (505) 382-5047.

Bartgis, R. Maryland Natural Heritage Program, Dept. of Natural Resources, Annapolis, MD.

Edward J. Fletcher Strategic Sourcing, Inc.

PNDHUB01NMUS, Legacy reference. Physical copy not yet located.

Montana Natural Heritage Program. No date. Unpublished data on file. Helena, MT.

Atchley, J. Wildlife biologist at Dripping Springs Natural Area. 1500 Dripping Springs Rd., #6. Las Cruces, NM 88001. (505) 522-1219 (office), 522-2941 (home).

Fletcher, R. USFS Range Management 517 Gold SW, Albuquerque, NM 87102. (505) 842-3225.