DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #27 24 May, 1991.

DeBruin, E. 1991. Field survey to Farmington Resource area-plot #24 on 9 May 1991.

Reed, S. and P. Hyder 1991. USGS San Patricio 7.5' topo map with Mammillaria heyderii from 22 May 1991 field survey for TNC.

Mehlhop, P. 1991. Field survey of August 26,1991 to Mound Spring, White Sands MIssile Range.

Anthony, R. M., P. L. Flint, and J. S. Sedinger. 1991. Arctic fox removal improves nest success of black brant. Wildl. Soc. Bull. 19:176-184.

Engeman, R. M., D. L. Campbell, and J. Evans. 1991. An evaluation of two activity indicators for use in mountain beaver burrow systems. Wildl. Soc. Bull. 19:413-416.

Gerhardt, R. P., M. A. Vasquez, and D. M. Gerhardt. 1991. Breeding biology, food habits, and siblicide of swallow-tailed kites. Pages 65-71 in Maya Project, Progress Report 4 (D. F. Whitacre, W. A. Burham, and J. P. Jenny, eds.). The Peregrine Fund, Boise

Ingold, D.J. 1991. Nest-site fidelity in Red-headed and Red-bellied Woodpeckers. Wilson Bulletin 103(1):118.

Phillips, R. L., J. L. Cummings, and J. D. Berry. 1991. Responses of breeding golden eagles to relocation. Wildl. Soc. Bull. 19:430-434.

Seidel, M. E., and W. M. Palmer. 1991. Morphological variation in turtles of the genus Pseudemys (Testudines: Emydidae) from central Atlantic drainages. Brimleyana 17:105-135.

Wilson, U. W. 1991e. Responses of three seabird species to El Nino events and other warm water episodes on the Washington coast, 1979-1990. Condor 93:853-858.

Anderson, D.L. 1991. Plant collection log sheet for ^&Talinum longipes - log #41: Mockingbird Gap. 25 July 1991.

Fisher, R.E. 1991. Notes from phone conversation with Margaret Estabrook of the Reserve Ranger District, Gila National Forest on 7 Oct 1991.

Madrid, R. (1991) 1991 Mexican Spotted Owl Daytime Follow-up Visit Forms. Silver City Ranger District, Gila National Forest, USFS. 6 p.

Snow, P. Herrera, D. Miller, S. Ocana, P. 1991. 1990 Mexican Spotted Owl Inventory Form, El Rito Ranger District, Carson National Forest. USFS.

Unknown (1991) 1991 Humbolt Demographic Study Sighting. Retrieved from silver City Ranger Distict, Gila National Forest, USFS. 3 p.

Beier, P. 1991. Cougar attacks on humans in the United States and Canada. Wildl. Soc. Bull. 19:

Dennis, B., P. L. Munholland, and J. M. Scott. 1991. Estimation of growth and extinction parameters for endangered species. Ecological Monographs 61:115-143.

Hamer, D., S. Herrero, and K. Brady. 1991. Food and habitat used by grizzly bears, URSUS ARCTOS, along the Continental Divide in Waterton Lakes National Park, Alberta. Canadian Field-Naturalist 105:325-329.

Kozie, K. D., and R. K. Anderson. 1991. Productivity, diet, and environmental contaminants in bald eagles nesting near the Wisconsin shoreline of Lake Superior. Arch. Environ. Contam. Toxicol. 20:41-48.

Pekins, P. J., F. G. Lindzey, and J. A. Gessaman. 1991. Physical characteristics of blue grouse winter use-trees and roost sites. Great Basin Nat. 51:244-248.

Smith, H. M., G. A. Hammerson, J. J. Roth, and D. Chizar. 1991. Distributional addenda for the smooth green snake (Opheodrys vernalis) in western Colorado, and the status of its subspecies. Bull. Maryland Herp. Soc. 27(2):99-106.

Cronin, M. A., M. E. Nelson, and D. F. Pac. 1991. Spatial heterogeneity of mitochondrial DNA and allozymes among populations of white-tailed deer and mule deer. J. Heredity 82:118-127.

Gore, J. A., and M. J. Kinnison. 1991. Hatching success in roof and ground colonies of least terns. Condor 93:759-762.

Leberg, P. L. 1991. Influence of fragmentation and bottlenecks on genetic divergence of wild turkey populations. Conservation Biology 5(4):522-530.

Petersen, K. L., and L. B. Best. 1991. Nest-site selection by sage thrashers in southeastern Idaho. Great Basin Nat. 51:261-266.

Stern, M. A., and R. L. Jarvis. 1991. Sexual dimorphism and assortative mating in black terns. Wilson Bull. 103(2): 266-271.

Ernst, C. H., and J. F. McBreen. 1991c. Terrapene. Cat. Am. Amph. Rept. 511.1-511.6.

New, T. R. 1991. Butterfly Conservation. Oxford Univ. Press, Australia. 224 pp.

Clayton, P. 1991. Field survey to Ball Ranch - Stop #18 on 2 Aug 1991.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #17 24 May, 1991

DeBruin, E. 1991. Field survey to Farmington Resource Area-plot #5 on 24 April 1991.

Monson, G. 1991. Letter to W. Shifflett, USFWS, 24 June 1991.

Britton, B. 1991. Unpublished plant element occurrence record for Allium gooddingii in BS Canyon, Sept. 1988. + map.

Henry, A. 1991. Unpub. letter to Pat Mehlhop regarding Aplomado Falcon sightings on the Gray Ranch. February 15, 1991.

Painter, C.W. 1991. Letter from Charlie Painter, Endangered Species biologist for NM Dept. Game and Fish to Pat Mehlhop of NMNHP dated 4 Sept. 1991 regarding Sceloporus scalaris localities in Hidalgo Co. 1 pp.

Sullivan, R.M. 1991. Live trapping of potential habitat for the meadow jumping mouse (Zapus hudsonius luteus) at the San Jose drain outfall area. Preliminary environmental report submitted to the Marron/Taschek/Knight Corporation.

Brush, T. 1991. Nesting ecology of Prothonotary Warblers in eastern Iowa: 1988-1991. Report submitted to the Iowa Department of Natural Resources. Unpublished.

Block, S. B., and E. G. Zimmerman. 1991. Allozymic variation and systematics of plains pocket gophers (Geomys) of south-central Texas. The Southwestern Naturalist 36:29-36.

Clayton, P. 1991. Field survey to Ball Ranch - Stop #2 on 19 July 1991.

Gilbert, F.F., and R. Allwine. 1991. Spring bird communities in the Oregon Cascade Range. Pages 145-158 in L.F. Ruggiero, K.B. Aubry, A.B. Carey, and M.H. Huff, technical coordinators. Wildlife and Vegetation of unmanaged Douglas-fir Forests. USDA Forest

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #21 24 May, 1991.

DeBruin, E. 1991. Field survey to Farmington Resource Area- Aztec ACEC - stop #8 on 6 May 1991.

Warham, J. 1991 (also listed as 1990). The petrels: their ecology and breeding systems. Academic Press. viii + 440 pp.

Hepp, G. R., and J. E. Hines. 1991. Factors affecting winter distribution and migration distance of wood ducks from southern breeding populations. Condor 93:884-891.

Morimoto, D. C., and F. E. Wasserman. 1991. Dispersion patterns and habitat associations of rufous-sided towhees, common yellowthroats, and prairie warblers in the southeastern Massachusetts pine barrens. Auk 108:264-276.

Worthington, R.D. (1991) Final Report, Kuenzler's Hedgehod Cactus Survey's 1, 2 & 3. Guadalupe Ranger District, Lincoln National Forest, USFS. 25 p.

The Nautre Conservancy. 1991. Ball Ranch field map. USGS 7.5' topographic May - San Felipe Pueblo NE - 3510643.

Seutin, G. 1991. Morphometric identification of Traill's flycatchers: an assessment of Stein's formula. Journal of Field Ornithology 62:308-313.

New Mexico Natural Heritage Program. 1991. Field map for 1991 Gilia formosa survey on USGS 7.5' topo map, Cedar Hill.

DeBow, M.J. 1991. Letter to Jennifer Fowler-Propst of US Fish and Wildlife Service concerning discovery of two Pediocactus papracanthus. 16 Oct 1991.

Taylor, I. R. 1991. Effects of nest inspections and radiotagging on barn owl breeding success. J. Wildl. Manage. 55:312-315.

Mills, Scott G. 1991. Miscellaneous notes on Coryphantha scheeri robustrispina. United States Forest Service (USFS) Regional Office, Albuquerque, NM. p.30.

The Nature Conservancy. Dec 9 1991. Addendum: Site Prospectus: Natural Land Protection Act, site identification program, presented to Natural Lands Protection Committee.

Minckley, W. L., and J. E. Deacon. 1991. Battle Against Extinction: Native Fish Management in the American West. University of Arizona Press, Tucson. xviii + 517 pp.

Anderson, J. (1991) 1991 Mexican Spotted Owl Inventory Form and Maps. Sandia Ranger District, Cibola National Forest, USFS. 40 p.

Harper, Hooley, Franklin, Martinez, Valdez. 1991. 1991 Mexican Spotted Owl Daytime Follow-up Visit Form, El Rito District, Carson National Forest, USFS. 3 p.

Turner, R., et al. 1991. NM Rare plant occurrence record data sheet of 27 August 1991 for Hedeoma apiculatum. EMNRD, Santa Fe, NM.

Clayton, P. 1991. Field survey to Ball Ranch - Stop #24 on 6 Aug 1991.

DeBruin, E. 1991. Field survey to Farmington Resource Area-east fork Kutz Canyon-stop #13 on 7 May 1991.