Sivinski, R., and K. Lightfoot. 1991. NM rare plant occurrence record data sheet of 15 August 1991 for Argemone pleiacantha ssp pinnatisecta. EMNRD, Santa Fe, NM.

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

Lincoln National Forest. 1991. Mexican Spotted Owl inventory forms.

Sivinski, R. 1991. NM rare plant occurrence record data sheet of 1 May 1991 for Phacelia splendens. EMNRD, Santa Fe, NM.

Black, C. and J. Black. 1991. Field survey to Gray Ranch - Fitzpatricks - site #1 on 20-21 June 1991.

Painter, C.W. 1991. Letter to Patricia Mehlhop regarding Sceloporis scalaris location, 20 Dec 1991. 1p + map.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #9A, 27 May, 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.

Anderson, J. 1991. Survey maps for Mexican Spotted Owl in Cibola National Forest. 7 p.

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.

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.

Kartesz, J. T. 1991. Synonym names from 1991 checklist, as extracted by Larry Morse, TNC, June 1991.

Sivinski, R. 1991. New Mexico rare plant occurrence record data sheet for Mammillaria viridiflora. NM Forestry Division, Santa Fe, NM. July 8, 1991.

Alberico, J. A. R., J. M. Reed, and L. W. Oring. 1991. Nesting near a common tern colony increases and decreases spotted sandpiper nest predation. Auk 108:904-910.

Byrd, M. A., and D. W. Johnston. 1991. Birds. Pages 477-537 in K. Terwilliger, coordinator. Virginia's endangered species: proceedings of a symposium. McDonald and Woodward Publ. Co., Blacksburg, Virginia.

Gibbs, J.P., W.G. Shriver, and S.M. Melvin. 1991. Spring and summer records of the Yellow Rail in Maine. Journal of Field Ornithology 62(4):509-516.

Jung, R. E. 1991. Effects of human activities and lake characteristics on the behavior and breeding success of common loons. Passenger Pigeon 53(3):207-218.

Oldham, J. C., and H. M. Smith. 1991. The generic status of the smooth green snake, Opheodrys vernalis. Bull. Maryland Herp. Soc. 27(4):201-215.

Schroeder, M. A. 1991. Movement and lek visitation by female greater prairie-chickens in relation to predictions of Bradbury's female preference hypothesis of lek evolution. Auk 108:896-903.

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.

Goldsmith, F.B. 1991. Monitoring for Conservation and Ecology. Chapman and Hall, New York, New York, USA.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #1 22 May, 1991.

DeBruin, E. 1991. Field survey to Farmington Resource Area-Adobe Downs Ranch, stops #12, 13, 14, on 1 May 1991.

Persecetti, C. and J. Horton. 1991. USGS Capitan Peak 7.5' topo map with Astragalus kerrii from 23-31 May 1991 field survey to Capitan Mts for TNC.

Altenbach, J. Scott. 1991. Untitled letter about "Lava Cave." Department of Biology, University of New Mexico. October 1991. 2 pp.

Mehlhop, P., et al. 1991. Status and distribution of Erigeron rhizomatus (Zuni Fleabane) within a designated satellite image reflectance value in the Datil and Sawtooth Mts. Unpubl. report by New Mexico Natural Heritage Program for Cibola National Forest.

Sivinski, R. 1991. Letter to Douglas F. Irving of Chapman, Wood, and Griswold, Inc. Concerning proposed mining impact on Townsendia gypsophila occurring in Sec. 16, T15NR1E.

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.

Clayton, P. 1991. Field Ssurvey to Ball Ranch - Stop #22 on 5 Aug 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.

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

Dennis, R. 1991. Ospreys. Colin Baxter Photography. 48 pp.

DeBruin, E. 1991. Field survey to Farmington Resource Area-plot #3 on 22 April 1991.

Price, R. M. 1991. Senticolis, S. triaspis. Society for the Study of Amphibians and Reptiles 525.1-525.4.

Mongold, R. 1991. Field survey to Capitan Mts - Sawset Canyon, 31 May 1991.

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.

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.

Bravo-Hollis, H. y H. Sanchez-Mejorada. 1991. Las Cactaceas de MUniversidad Nacional Autonoma de MMVol. II Y III.

Kartesz, J. T. 1991. Accepted taxon names from 1991 checklist, as extracted by Larry Morse, TNC, June 1991.

Sivinski, R. 1991. Status report on Sophora gypsophila var. guadalupensis. NM Dept. of Energy, Minerals, and Natural Resources, Forestry Division.

Hotker, H. (ed.) 1991. Waders Breeding on Wet Grasslands. Wader Study Group Bull. 61, Supplement.

Gila National Forest. 1991. Threatened, Endangered and Sensitive Plant Program report on Allium gooddingii, Rumex orthoneurus and Senecio quarens.

Madrid, B. Arvedson, C. (1991) 1881 Mexican Spotted Owl Inventory Form. Silver City Ranger District, Gila National Forest, USFS. 2 p.

Sivinski, R. and K. Lightfoot. 1991. NM rare plant occurrence record data sheet of 28 June 1991 for Cypripedium pubescens. EMNRD, Santa Fe, NM.

Clayton, P. 1991. Field survey to Ball Ranch - Stop #3 on 19 July 1991.

DeBruin, E. 1991. Field survey to Farmington Resource Area-plot #15 on 4 May 1991.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #12 on 23 May 1991.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #10 23 May, 1991.