Norden, A. W., and B. B. Norden. 1991. The Mediterranean gecko (HEMIDACTYLUS TURCICUS) in Baltimore, Maryland. Maryland Nat. 33(3-4) [1989]:57-58.

Page, G. W., et al. 1991. Distribution and abundance of the snowy plover on its western North American breeding grounds. J. Field Ornithology 62:245-255.

Steidl, R. J., and C. R. Griffin. 1991. Growth and brood reduction of mid-Atlantic coast ospreys. Auk 108:363-370.

Turner, J. W., Jr., and J. F. Kirkpatrick. 1991. New developments in feral horse contraception and their potential application to wildlife. Wildl. Soc. Bull. 19:350-359.

Carothers, S.W., and B.T. Brown. 1991. The Colorado River through the Grand Canyon. University of Arizona Press, Tucson, AZ.

U.S. Forest Service (USFS). 1991. Forest and rangeland birds of the United States: Natural history and habitat use. U.S. Department of Agriculture, Forest Service Agricultural Handbook 688. 625 pp.

DeBruin, E. 1991. Field survey to Gila National Forest, Grouse Mountain - Stop #1 on 20 July 1991.

DeBruin, E. 1991. Field survey to Farmington Resource Area-plot #16 on 4 May 1991.

Williams, L. R., and G. N. Cameron. 1991. Geomys attwateri. Am. Soc. Mamm., Mammalian Species No. 382:1-5.

Muldavin, E. 1991. Gray Ranch vegetation survey, 1991. New Mexico Natural Heritage Program

Bureau of Land Management. 1991. Maps of USGS 7.5' top maps with transparencies showing Gilia formosa: existing pops, areas surveyed and potential distribution. Prepared from Paul Knight's 1986 field work maps.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #28 28 May, 1991.

Reed, S.and P. Hyder. 1991. Field survey to Capitan Mts - Matney Spring. 24 May 1991.

Berkey, G. 1991. Yellow Rails: birds that go click in the night. North Dakota Outdoors, March 1991:8-9.

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.

Conover, M. R. 1991. Herbivory by Canada geese: diet selction and effect on lawns. Ecological Applications 1(2):231-236.

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.

Gavin, T. A., R. A. Howard, and B. May. 1991. Allozyme variation among breeding populations of red-winged blackbirds: the California conundrum. Auk 108:602-611.

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.

Koprowski, J. L. 1991. Response of fox squirrels and gray squirrels to a late spring-early summer food shortage. Journal of Mammalogy 72:367-72.

Morkill, A. E., and S. H. Anderson. 1991. Effectiveness of marking powerlines to reduce sandhill crane collisions. Wildlife Society Bull. 19:442-449.

Steidl, R. J., C. R. Griffin, and L. J. Niles. 1991b. Contaminant levels of osprey eggs and prey reflect regional differences in reproductive success. J. Wildl. Manage. 55:601-608.

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

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

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.

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

Phillips, A.M., and B.G. Phillips. 1991. Status report for Puccinellia parishii. U.S. Fish and Wildlife Service, Ecological Services, Phoenix, AZ.

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.

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.

DeBruin, E. 1991. Survey for Echinocereus fendleri ver. kuenzleri on Fort Stanton Reservation. Unpubl. report by New Mexico Natural Heritage Program for BLM Roswell Resource Area. 12 p. + app.

Lincoln National Forest, Mayhill Ranger District. 1991. Echinocereus fendleri var kuenzleri monitoring report, March 1991.

Schwarz, H. Hurley, T. (1991) Northern Goshawk Inventory Form - 1991. Sandia Ranger District, Cibola National Forest, USFS. 5 p.

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.

Bickle, C. A., J. F. Kirkpatrick, and J. W. Turner, Jr. 1991. Contraception in striped skunks with Norplant implants. Wildl. Soc. Bull. 19:334-338.

U.S. Fish and Wildlife Service (USFWS). 1991. Request for information on the Arctic and American peregrine falcons. Federal Register 56(113):26969-26971.

Huff, M.H., and C.M. Raley. 1991. Regional patterns of diurnal breeding bird communities in Oregon and Washington. Pages 176-205 in L.F. Ruggiero, K.B. Aubry, A.B. Carey, and M.H. Huff, technical coordinators. Wildlife and Vegetation of unmanaged Douglas-

Li, Y., and J. R. Gold. 1991. Cytogenetic studies in North American minnows (Cyprinidae): XXII. Chromosomal nucleolar organizer regions in the genus Pimephales. Canadian Journal of Zoology 69:2826-2830.

Reeder, J.R. 1991. A new species of Panicum (Gramineae from Arizona. Phytologia 71(4): 300-303.

Szymczak, M. R., and E. A. Rexstad. 1991. Harvest distribution and survival of a gadwall population. J. Wildl. Manage. 55:592-600.

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

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

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.

Brennan, L. A., and M. L. Morrison. 1991. Long-term trends of chickadee populations in western North America. Condor 93:130-137.

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.

Cronin, M. A., S. C. Amstrup, G. W. Garner, and E. R. Vyse 1991. Interspecific and intraspecific mitochondrial DNA variation in North American bears (Ursus). Canadian Journal of Zoology 69(12):2985-2992.

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.

Hussell, D. J. T. 1991b. Spring migrations of alder and willow flycatchers in southern Ontario. Journal of Field Ornithology 62(1):69-77.

Novak, J. M., et al. 1991. Catch-effort estimation of white-tailed deer population size. J. Wildl. Manage. 55:31-38.

Pechmann, J.H.K., D.E. Scott, R.D. Semlitsch, J.P. Caldwell, L J. Vitt, and J.W. Gibbons. 1991. Declining amphibian populations: the problem of separating human impacts from natural fluctuations. Science 253:892-895.

Stromberg, J.C., D.T. Patten, and B.D. Richter. 1991. Flood flows and dynamics of Sonoran riparian forests. Rivers 2:221-235.