DeBruin, E. 1991. Field survey to Farmington Resource Area - Radio tower plot #12 on 3 May 1991.

Martin, K. 1991. Photographs of an Aplomado Falcon observed near RITA site, WSMR. 4 p.

Clayton, P. 1991. Plant survey for Abronia bigelovii, Astragalus feensis and Pediocactus papyracanthus on the Ball Ranch. Unpubl. report by New Mexico Natural Heritage Program for The Nature Conservancy, NMNHP contract 91-07-10. 10 p.

Hurley, T. Schwarz, H.R. (1991) Northern Goshawk Inventory Form - 1991 . Sandia Ranger District, Cibola National Forest, USFS. 4 p.

Peckinpaugh, M. 1991. Summary of Least tern observations, summer 1991. Report to Nongame Program, NM Dept. of Game and Fish.

Minckley, W. L. 1991. Professor of Zoology. Arizona State University, Tempe, AZ.

Wood, S. 1991. Argemone pleiacantha ssp pinnatisecta: Alamo Canyon July 1991. . 2 p.

Clayton, P. 1991. Field survey to Ball Ranch - Stop #7 on 22 July 1991.

Bestgen, K. R., and S. P. Platania. 1991. Status and conservation of the Rio Grande silvery minnow, Hybognathus amarus. Southwestern Naturalist 36:225-232.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #22 24 May, 1991.

Clark, D. R., Jr., and C. M. Bunck. 1991. Trends in North American small mammals found in common barn-owl (TYTO ALBA) dietary studies. Can. J. Zool. 69:3093-3102.

DeBruin, E. 1991. Field survey to Farmington Resource Area - Aztec plot #6 on 25 April 1991.

Fleischer, R. C., S. I. Rothstein, and L. S. Miller. 1991. Mitochondrial DNA variation indicates gene flow across a zone of known secondary contact between two subspecies of the brown-headed cowbird. Condor 93:185-189.

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.

Bestgen, Kevin R. and Steven P. Platania. 1991. Status and conservation of the Rio Grande silvery minnow, ^&Hybognathus amarus. Southwest. Nat. 36(2): p225-232.

Diamond, A. W. 1991. Assessment of the risks from tropical deforestation to Canadian songbirds. Transactions of the North American Wildlife and Natural Resources Conference 56:177-194.

Herkert, J.R. 1991a. Prairie birds of Illinois: population response to two centuries of habitat change. Illinois Natural History Survey Bulletin 34:393-399.

Livezey, B. C. 1991. A phylogenetic analysis and classification of recent dabbling ducks (tribe Anatini) based on comparative morphology. Auk 108:471-507.

Peterson, M. J., W. E. Grant, and D. S. Davis. 1991. Bison-brucellosis management: simulation of alternative strategies. J. Wildl. Manage. 55:205-213.

Toland, B. 1991. Successful nesting by reddish egrets at Oslo Island, Indian River County, Florida. Florida Field Naturalist 19:51-53.

Todsen, T. 1991. Notes from telephone conversation between Tom Todsen and Ellen DeBruin concerning Limosella Pubiflora at Gray Ranch HQ Cienega on 12 Nov 1991.

Collins, C. T., W. A. Schew, and E. Burkett. 1991. Elegant terns breeding in Orange County, California. Am. Birds 45:393-395.

Knight, P. and A. Cully. 1991. A new species of Astragalus (Fabaceae) from southeastern New Mexico. Southwestern Nat. 36(2):198-200. June 1991.

Noss, R. F. 1991. Effects of edge and internal patchiness on avian habitat use in an old-growth Florida hammock. Natural Areas Journal 11:34-47.

Schmutz, J.K. 1991a. Population dynamics of Ferruginous Hawks in Alberta. Pages 212-214 in G.L. Holroyd, G. Burns, and H.C. Smith, editors. Proceedings of the second endangered species and prairie conservation workshop. Natural History Occasional Paper 15

Ashton, R. E., Jr., and P. S. Ashton. 1991. Handbook of reptiles and amphibians of Florida. Part two. Lizards, turtles & crocodilians. Revised second edition. Windward Pub., Inc., Miami. 191 pp.

Spahr, R., L. Armstrong, D. Atwood, and M. Rath. 1991. Threatened, endangered, and sensitive species of the Intermountain Region. U.S. Forest Service, Ogden, Utah.

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.