Nichols, J. D. 1991. Science, population ecology, and the management of the American black duck. J. Wildl. Manage. 55:790-799.

Allen, D. H. 1991. An insert technique for constructing artificial red-cockaded woodpecker cavities. General Technical Report SE-73. U.S. Department of Agriculture, Southeastern Forest Experimental Station, Asheville, North Carolina.

Sauer, J. R., and J. B. Bortner. 1991. Population trends from the American woodcock singing-ground survey, 1970-1988. J. Wildl. Manage. 55:300-312.

Thompson, C.W. 1991d. The sequence of molts and plumages in painted buntings and implications for theories of delayed plumage maturation. Condor 93:209-235.

Anderson, J. (1991) 1991 Mexican Spotted Owl Inventory Form. Sandia Ranger District, Cibola National Forest, USFS. 2 p.

Gila National Forest. 1991. Goshawk data base update.

Marsh, P.C. 1991. Spikedace Meda fulgida recovery plan. Unpub report for U.S. Fish and Wildlife Dept, Albuquerque, NM 37 pp.

Unknown. (1991) Intensive Water Quality Survey of Tributaries to the Red River: Cabresto, Columbine, Pioneer, Mellette and Goose Creeks in Taos County, New Mexico, April 1-4, 1991. Carson Supervisor's Office, Carson National Forest, USFS.

Belant, J. L., and J. F. Olson. 1991. Chick fostering by common loons, GAVIA IMMER. Can. Field-Nat. 105:406-407.

Dessauer, H. C., and C. J. Cole. 1991. Genetics of whiptail lizards (Reptilia: Teiidae: Cnemidophorus) in a hybrid zone in southwestern New Mexico. Copeia 1991:622-637.

Hellgren, E. C., M. R. Vaughan, and D. F. Stauffer. 1991. Macrohabitat use by black bears in a southeastern wetland. J. Wildlife Management 55:442-448.

Lehmkuhl, J.F., L.F. Ruggiero, and P.A. Hall. 1991. Landscape-scale patterns of forest fragmentation and wildlife richness and abundance in the southern Washington Cascade Range. Pages 425-442 in L.F. Ruggiero, K.B. Aubry, A.B. Carey and M.H. Huff, techni

Peterson, A. T. 1991. Geographic variation in the ontogeny of beak coloration of gray-breasted jays (APHELOCOMA ULTRAMARINA). Condor 93:448-452.

Snell, R. R. 1991a. Interspecific allozyme differentiation among North Atlantic white-headed larid gulls. Auk 108:319-328.

Carey, A.B., M.M. Hardt, S.P. Horton, and B.L. Biswell. 1991. Spring bird communities in the Oregon Coast Range. Pages 123-142 in L.F. Ruggiero, K.B. Aubry, A.B. Carey, and M.H. Huff, technical coordinators. Wildlife and Vegetation of unmanaged Douglas-fi

Georgiadis, N. J., P. Kat, H. Oketch, and J. Patton. 1991. Allozyme divergence within the Bovidae. Evolution 44:2135-2149.

Kie, J. G. 1991. Foraging behavior by mule deer: the influence of cattle grazing. J. Wildl. Manage. 55:665-674.

Nelson, D. W., C. Pidgeon, and J. G. Turner. 1991. Mature upper mixed-coniferous forest-montane chaparral. Journal of Field Ornithology (Supplement) 62:67-68.

S91SPELCNMUS, Legacy reference. Physical copy not yet located.

Rosenfield, R.N., J. Bielefeldt, R.K. Anderson, and J.M. Papp. 1991. Status reports: Accipters. Pages 42-49 in Proc. midwest raptor management symposium and workshop. National Wildlife Federation, Washington, DC.

Wiens, J. J., and T. A. Titus. 1991. A phylogenetic analysis of Spea (Anura: Pelobatidae). Herpetologica 47:21-28.

Platz, J. E. 1991. Rana berlandieri. Cat. Am. Amph. Rept. 508.1-508.4.

Clayton, P. 1991. Field survey to Ball Ranch - Stop #23 on 5 Aug 1991.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #11A, 27 May, 1991

DeBruin, E. 1991. Field survey to Farmington Resource Area - Hampton Arroyo ACEC plot #17 on 6 May 1991.

Burns, B. (1991) 1991 Meican Spotted Owl Inventory Form. Retrieved from Silver City Ranger District, Gila National Forest, USFS. 20 p.

Human Systems Research, Inc. 1991. Mountains of sunlit silence: White Sands Missile Range inventory sample survey of the southern San Andres Mountains, New Mexico.

Painter, C.W. 1991. Results of the 1990 survey for the Gray-checkered whiptail (Cnemidophorus dixoni) on Bureau of Land Management (BLM) lands in southwestern New Mexico. 20 p.

Taiz, J.D. Reichenbacher, F.W. (1991) 1991 Inventory of Mexican Spotted Owl (Strix occidentalis lucida Nelson) in the Gila Natioanl Foret, Wilderness District. 33 p.

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

Alldredge, A. W., R. D. Deblinger, and J. Peterson. 1991. Birth and fawn bed site selection by pronghorns in a sagebrush-steppe community. J. Wildl. Manage. 55:222-227.

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

Burns, R. J., H. P. Tietjen, and G. E. Connolly. 1991. Secondary hazard of Livestock Protection Collars to skunks and eagles. J. Wildl. Manage. 55:701-704.

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

Einemann, L. 1991. A nesting report of a Wilson's Phalarope in Lancaster County. Nebraska Bird Review 59:59-61.

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

Kraus, F., P.K. Ducey, P. Moler,. and M.M. Miyamoto. 1991. Two new triparental unisexual Ambystoma from Ohio and Michigan. Herpetologica. 47:429-439.

Mattson, D. J., et al. 1991b. Bear feeding activity at alpine insect aggregation sites in the Yellowstone ecosystem. Canadian J. Zoolgoy 69:2430-2435.

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

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

Ridgway, M. S., J. A. MacLean, and J. C. MacLeod. 1991a. Nest-site fidelity in a centrarchid fish, the smallmouth bass (Micropterus dolomieui). Canadian Journal of Zoology 69:3103-3105.

DeBruin, E. 1991. Gilia formosa inventory and monitoring project. Unpubl. report by New Mexico Natural Heritage Program for BLM Farmington Resource Area. 8 p. + app.

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

Todsen, T.K. 1991. Unpubl. plant occurrence record for Malaxis tenuis, map and letter, 17 May 1991.

Gonzalez, M., S. Gonzalez, and Y. Herrera. 1991. Listados floristicos de Mexico. IX. Flora de Durango. Instituto de Biologia, Universidad Nacional Autonoma de Mexico, Mexico, D.F. 167 pp.

Burns, B. (1991) 1991 Mexican Spotted Owl Inventory Form. Retrieved from Silver City Ranger District, Gila National Forest, USFS. 30 p.

Jennings, R. 1991. Alamosa Warm Springs-microhabitats. Unpub. Rana chiricahuensis data from Randy Jennings. Biology Dept. UNM.

Quesenberry, L. 1991. Unpub. printout of Bureau Land Mgt. T & E plant database for Gilia formosa 2 Jan. 1991. 2 pp.

Clayton, P. 1991. Field survey to Ball Ranch - Stop #4 on 22 July 1991.

DeBruin, E. 1991. Field survey to Farmington Resource Area-plot #4 on 24 April 1991.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #3 on 22 May 1991 - Mammillaria heyderi.

DeBruin, E. 1991. Field survey to Tularosa Mts - Long canyon on 23 July 1991.

DeBruin, E. 1991. Field survey to Farmington Resource Area-plot #21 on 8 May 1991.

Caire, W. 1991. A breeding population of the northern pygmy mouse, Baiomys taylori, in southwestern Oklahoma. Southwest Nat. 36:364-365.

Decker, D. M., and W. C. Wozencraft. 1991. Phylogenetic analysis of recent procyonid genera. Journal of Mammalogy 72:42-55.

Harris, J. H. 1991. Effects of brood parasitism by brown-headed cowbirds on willow flycatcher nesting success along the Kern River, California. Western Birds 22:13-26.

Jennings, R. 1991. Alamosa Warm Springs. Hand-drawn map of Alamosa Warm Springs locations of 1987-1991 herpetological field work.

Padgett, T. M., and R. K. Rose. 1991. Bats (Chiroptera: Vespertilionidae) of the Great Dismal Swamp of Virginia and North Carolina. Brimleyana 17:17-25.

Franclemont, J.G. 1991. Determinations of unidentified Notodontidae in Colorado State University collection.

Savard, J.-P. L., G. E. J. Smith, and J. N. M. Smith. 1991. Duckling mortality in Barrow's goldeneye and bufflehead broods. Auk 108:568-577.