Advanced Sciences, Inc. 1991. Threatened and endangered species survey at ABC Flip side, White Sands Missile Range. WSMR Environmental Services Report no. REC-EA-03-88, prepared under WSMR contract DAAD07-90-C-0018. 4 April, 1991. . 14 p.

Hurley, T. Schwarz, H.R. (1991) Northern Goshawk Inventory Form - 1991 . Sandia Ranger District, Cibola National Forest, USFS. 3 p.

Wershler, C., W.W. Smith, and C. Wallis. 1991. Status of the Baird's Sparrow in Alberta: 1987/1988 update with notes on other grassland sparrows and Sprague's Pipit. Pages 87-89 in G.L. Holroyd, G. Burns, and H.C. Smith, editors. Proceedings of the second

Reichenbacher, F.W. 1991. Illustrated manual of rare cacti of the United States and Puerto Rico. Unpublished manuscript draft on Toumeya papyracantha [Pediocactus papyracanthus] for southwest. Field biologists, Univ. of AZ and USFWS. May 1991. 4 pp.

Terres, J.K. 1991. The Audubon Society encyclopedia of North American birds. Alfred A. Knopf, New York.

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.

Nowak, R. M. 1999. Walker's mammals of the world. Sixth edition. Johns Hopkins University Press, Baltimore. Two volumes, 1,936 pp.

Black, C. and J. Black. 1991. Field survey to Gray Ranch - Indian Creek Canyon on 23 June 1991.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #36 29 May, 1991.

Horton, J. and C. Persichetty. 1991. Field survey to Capitan Mts. - Pierce Canyon Arroyo at Forest Rd. 57, 23 May 1991.

Reed, S. and P. Ryder. 1991. Field survey to Capitan Mts - ridge E. of Ellis Canyon. 23 May 1991.

DeBruin, E. 1991. Field Survey to Fort Stanton ACEC - "Dan's plot", 27 May, 1991

DeBruin, E. 1991. Field survey to Farmington Resource Area-Munoz Canyon stop #1 on 8 May 1991.

Reed, S. 1991. Field survey to Capitan Mts. - Baca Spring Creek, 31 May 1991.

Blake, J.G. 1991. Nested subsets and the distribution of birds on isolated woodlots. Conservation Biology 5:58-66.

Conover, M. R., and G. S. Kania. 1991. Characteristics of feeding sites used by urban-suburban flocks of Canada geese in Connecticut. Wildl. Soc. Bull. 19:36-38.

Krementz, D. G., et al. 1991. Historical changes in laying date, clutch size, and nest success of American black ducks. J. Wildl. Manage. 55:462-466.

Morton, M.L. 1991. Postfledging dispersal of green-tailed towhees to a subalpine meadow. Condor 93:466-468.

Tango, P. J., E. D. Michael, and J. I. Cromer. 1991. Mating and first-season births in interstate transplanted river otters, LUTRA CANADENSIS (Carnivora: Mustelidae). Brimleyana 17:53-55.

Dunmire, W.W. 1991. T&E and sensitive plant survey, Ladron Mountains ACEC, Socorro Resource Area. Prepared for the BLM by the Nature Conservancy, NM Field Office. February 1, 1991.

Jennings, R. et al. 1991. Unpub. field notes for April 8-11, 1991 trip to Alamosa Warm Springs, Beaverhead, Cooney Tanks, Gillette Tank, Reserve and Tularosa River. 6 pp.

Sivinski, R. 1991. New Mexico rare plant occurrence record data sheet for Hymenoxys brachyatis. NM Forestry Division, Santa Fe, NM. June 24, 1991.

Texas Parks and Wildlife Dept., Resource Protection Division. 1991. Endangered resources annual status report. Texas Parks and Wildlife Department, Austin, TX, 45 pp + appendices.

Adkins, R. M., et al. 1991. Hybrid breakdown in Peromyscus leucopus and examination of the recombinational-breakdown model. J. Mamm. 72:535-541.

Byers, S. M., and J. R. Cary. 1991. Discrimination of mallard strains on the basis of morphology. J. Wildl. Manage. 55:580-586.

Gibeau, M. L., and P. C. Paquet. 1991. Evaluation of Telazol for immobilization of black bears. Wildlife Society Bull. 19:400-402.

Johnson, B. K., F. G. Lindzey, and R. J. Guenzel. 1991. Use of aerial line transect surveys to estimate pronghorn populations in Wyoming. Wildl. Soc. Bull. 19:315-321.

Nudds, T. D., and R. W. Cole. 1991. Changes in populations and breeding success of boreal forest ducks. J. Wildl. Manage. 55:569-573.

Sandercock, F.K. 1991. Life history of coho salmon (Oncorhynchus kisutch). Pages 395-445 in C. Groot and L. Margolis, editors. Pacific salmon life histories. University of British Columbia Press, University of British Columbia, Vancouver. xv + 564 pp.

Budeau, D. A., J. T. Ratti, and C. R. Ely. 1991. Energy dynamics, foraging ecology, and behavior of prenesting greater white-fronted geese. J. Wildl. Manage. 55:556-563.

Gall, L.F. 1991a. Evolutionary ecology of sympatric Catocala moths (Lepidoptera: Noctuidae). I. Experiments on larval foodplant specificity. Journal of Research on the Lepidoptera. 29(3): 173-194.

Hull, C.N. 1991. Northern Waterthrush. Page 436 IN R. Brewer, G.A. McPeek, R.J. Adams, Jr. (editors), The atlas of breeding birds of Michigan. Michigan State University Press, East Lansing.

Lovich, J. E., et al. 1991. Relationships among turtles of the genus Clemmys (Reptilia, Testudines, Emydidae) as suggested by plastron scute morphology. Zoologica Scripta 20:425-429.

Tippie, D., J. E. Deacon, and C.-H. Ho. 1991. Effects of convict cichlids on growth and recruitment of White River springfish. Great Basin Naturalist 51:256-260.

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.

Galeano-Popp, R.. 1991. Letter to Greg Rawlings, NM Hwy Dept, from Renee Galeano-Popp, USFS, regarding potential impacts to Argemone pleiacantha spp. pinnatisecta, Dec. 1991. . 3 p.

Madrid, B. Ford-Schmid, R. Arvidson, C. (1991) 1991 Mexican Spotted Owl Daytime Follow-up Visit Form. Silver City Ranger District, Gila National Forest, USFS. 3 p.

Sivinski, R. and M.J. Ford. 1991. NM rare plant occurrence record data sheet of 21 July 1991 for Lilium philadelphicum var ondinum. EMNRD, Santa Fe, NM.

Clayton, P. 1991. Field survey to Ball Ranch - Stop #19 on 5 Aug 1991.

Bryan, G.G., and L.B. Best. 1991. Bird abundance and species richness in grassed waterways in Iowa rowcrop fields. American Midland Naturalist 126:90-102.

DeBruin, E. 1991- 1992. Personal field notebook with information that complements special plant site survey forms for New Mexico.

DeGraaf, R. M., W. M. Healy, and R. T. Brooks. 1991. Effects of thinning and deer browsing on breeding birds in New England oak woodlands. Forest Ecology Management 41:179-191.

Birkhead, T. R. 1991. The ecology and behavior of black-billed and yellow-billed magpies. Academic Press. 259 pp.

DeBruin, E. 1991. Field survey to Farmington Resource Area-Adobe Downs Ranch, stop #15 on 10 May 1991.

Nowak, R. M. 1991. Walker's mammals of the world. Fifth edition. Vols. I and II. Johns Hopkins Univ. Press, Baltimore. 1629 pp.

Janvrin, J. A., E. P. Wiggers, and T. V. Dailey. 1991. Evaluation of drive counts for estimating northern bobwhite densities. Wildl. Soc. Bull. 19:XXX-481.

S91SIVTANMUS, Legacy reference. Physical copy not yet located.

Lundquist, R. W. and J. M. Mariani. 1991. Nesting habitat and abundance of snag-dependent birds in the southern Washington Cascade Range. Pp. 220-239 in L. F. Ruggiero, K. B. Aubry, A. B. Carey and M. H. Huff, tech. coordinators. Wildlife and Vegetation o

Crocoll, S. 1991. The potential impact of gypsy moth defoliation on broad-winged hawk reproductive success. The Kingbird 41:224-227.

Postupalsky, S. 1991. Northern goshawk. Pages 169 in R. Brewer, G. A. McPeek, R. J. Adams Jr. (editors). Atlas of Breeding Birds of Michigan. Michigan State University Press, East Lansing, Michigan.

Bureau of Land Management (BLM). 1991. San Luis Resource Area Record of Decision and Approved Resource Management Plan. December. Unpublished Report. US Department of Interior, Bureau of Land Management, Denver, Colorado, USA.

Igl, L.D. 1991. The role of climate and mowing on Dickcissel (SPIZA AMERICANA) movements, distribution and abundance. M.S. thesis. Iowa State University, Ames, IA. 54 pp.

Williams, J. D., and G. H. Clemmer. 1991. Scaphirhynchus suttkusi, a new sturgeon (Pisces: Acipenseridae) from the Mobile Basin of Alabama and Mississippi. Bulletin of the Alabama Museum of Natural History 10:17-31.

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.

Vermont Fish & Wildlife Department. 1991. Vermont's moose status 1991. 5 pp.

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