Kraus, F., and M. M. Miyamoto. 1991. Rapid cladogenesis among the pecoran ruminants: evidence from mitochondrial DNA sequences. Systematic Zoology 40:117-130.

Mayden, R. L., W. J. Rainboth, and D. G. Buth. 1991. Phylogenetic systematics of the cyprinid genera Mylopharodon and Ptychocheilus: comparative morphometry. Copeia 1991:819-834.

New Mexico Natural Heritage Program. 1991. Field map for 1991 Gilia formosa survey on USGS 7 1/2' topo map, Horn Canyon Quad.

Reed, S. and P. Hyder 1991. USGS Arabela 7.5' topo map with Astragalus kerrii from 23-31 May 1991 field survey for TNC.

Rogers, M. A. 1991a. Evolutionary differentiation within the northern Great Basin pocket gopher, Thomomys townsendii. I. Morphological variation. Great Basin Nat. 51:109-126.

Abeyta, A. (1991) Witten Notes on Cabresto Site Goshawk Nest. Questa Ranger District, Carson National Forest, USFS. 1 p.

DeBruin, E. 1991. Sensitive plants of the Gila National Forest. Unpubl. report by New Mexico Natural Heritage Program for the Sensitive Species Workshop, April 29-30, 1991.

Sheppard, J. L. pers. comm. Colorado Department of Natural Resources, Division of Wildlife, 6060 Broadway, Denver, CO 80216.

Unknown, 1991. Fish Collection Records: Costilla and Ponil Creeks, New Mexico Department of Game and Fish, "Fish Data Base."

Grooms, S., and D. Peterson. 1991. Bluebirds! NorthWord Press, Inc. 160 pp.

Burns, B. (1991) 1991 Mexican Spotted Owl Inventory Form, Retrieved from Silver City Ranger District, Gila National Forest, USFS. 28 p.

Kartesz, J. 1991. [Synonymized checklist of the vascular flora of North America north of Mexico, Hawaii, and the U.S. Caribbean islands]. Advance copy [in database form] of manuscript submitted for publication to Timber Press, Portland, Oregon.

Quesenberry, L. 1991. Unpub. printout of Bureau Land Mgt. database of Gilia formosa on disturbed site and well locations moved due to G. formosa. 4 pp.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC, Fort Stanton - Stop #15 on 24 May 1991.

DeBruin, E. 1991. Field survey to Farmington Resource Area- NW 1, "Lisa F.H. plot" 18 April 1991.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - near stop #3 on 22 MAY 1991.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #3 23 May, 1991

DeBruin, E. 1991. Field survey to Farmington Resource Area-Kutz ACEC area stop #16 on 9 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.

Waser, P. M., and L. F. Elliot. 1991. Dispersal and genetic structure in kangaroo rats. Evolution 45:935-943.

Anderson, J. (1991) Northern Goshawk Nest Search Form. Sandia Ranger District, Cibola National Forest, USFS. 2 p.

Gila National Forest. 1991. Mexican Spotted Owl daytime follow-up visit form, survey for Mexican Spotted Owl.

Mt. Taylor Ranger District. 1991. Northern Goshawk monitoring forms.

Unknown (1991) Spotted Owl Data Base Information, Gila National Forest, New Mexico. Retrieved from Silver City Ranger District, Gila National Forest, USFS. 57 p.

Berna, H. J. 1991. First record of the ermine (Mustela erminea) in Arizona. Southwest. Nat. 36:245-246.

De Smet, K.D., and M.P. Conrad. 1991. Management and research needs for the Baird's sparrow and other grassland species in Manitoba. Proceedings of the The Second Endangered Species and Prairie Conservation Workshop, Provincial Museum of Alberta. Natural

Henson, P., and T. A. Grant. 1991. The effects of human disturbance on trumpeter swan breeding behavior. Wildl. Soc. Bull. 19:248-257.

Li, P. and T. E. Martin. 1991. Nest-site selection and nesting success of cavity-nesting birds in high elevation forest drainages. Auk 108:405-418.

Peterson, A. T. 1991. Gene flow in scrub jays: frequency and direction of movement. Condor 93:926-934.

Steidl, R. J., C. R. Griffin, and L. J. Niles. 1991a. Differential reproductive success of ospreys in New Jersey. J. Wildl. Manage. 55:266-272.

Christens, E., and H. Blokpoel. 1991. Operational spraying of white mineral oil to prevent hatching of gull eggs. Wildl. Soc. Bull. 19:423-430.

Klenner, W., and C. J. Krebs. 1991. Red squirrel population dynamics. I. The effect of supplemental food on demography. J. Anim. Ecol. 60:961-978.

Nesom, G. L. 1991. A new species of Erigeron (Asteraceae: Astereae) from Northwestern New Mexico. Phytologia. 71(5): 416-419.

Schmutz, J. K., R. W. Fyfe, U. Banasch and H. Armbruster. 1991. Routes and timing of migration of falcons banded in Canada. Wilson Bull. 103:44-58.

Young, B. E. 1991. Annual molts and interruption of the fall migration for molting in Lazuli buntings. Condor 93:236-250.

Rosenberg, K.V., R.D. Ohmart, W.C. Hunter, and B.W. Anderson. 1991. Birds of the Lower Colorado River valley. The University of Arizona Press, Tucson. 416 pp.

DeBruin, E. 1991. Field survey to Farmington Resource Area - Tucker Canyon plot #9 on 1 May 1991.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #6A, 27 May, 1991

DeBruin, E. 1991. Field survey to Farmington Resource Area - Tucker Canyon stop #4 on 1 May 1991.

Corral, R. 1991. Letter to Anne Cully concerning locations of Pediomelum pentaphyllum.

Jennings, R. 1991. Bufo microscaphus. Unpub listing of Bufo microscaphus specimens at MSB. 3 pp.

Persecetti, C. and J. Horton. 1991. Unpublished field notes from Astragalus kerrii field survey to Capitan Mts. 23-31 May 1991 for TNC. 6 pp.

Clayton, P. 1991. Field survey to Ball Ranch - Stop #6 on 22 July 1991.

Bildstein, K. L., P. C. Frederick, and M. G. Spalding. 1991. Feeding patterns and aggressive behavior in juvenile and adult American flamingos. Condor 93:916-925.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #26 24 May, 1991.

Cooch, E. G., D. B. Lank, R. F. Rockwell, and F. Cooke. 1991. Long-term decline in body size in a Snow Goose population: evidence of environmental degradation? Journal of Animal Ecology 60:483-496.

DeBruin, E. 1991. Field survey to Farmington Resource Area - Tucker Canyon plot #10 on 1 May 1991.

Fleming, T. H. 1991. Following the nectar trail. Bats 9(4):4-7.

Laudenslayer et al. 1991. California Fish and Game 77(3):109-141.[full citation not available]

Mayer, P. M., and M. R. Ryan. 1991a. Survival rates of artificial piping plover nests in American avocet colonies. Condor 93:753-755.

U.S. Geological Survey, National Mapping Division, and EROS Data Center. 1991. Conterminous U.S. AVHRR Companion Disc.

Mapper unknown. 1991. Maps of 8 exclosures of Cirsium vinaceum on LIncoln NF, NM.

Rogers, L. L., G. A. Wilker, and S. S. Scott. 1991. Reactions of black bears to human menstrual odors. J. Wildlife Management 55:632-634.

Abeyta, A. Montoya, J. (1991) Northern Goshawk Nest Search Form - 1991. Questa Ranger District, Carson National Forest, USFS. 5 p.