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

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.

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.

Johnsgard, P. A. 1991. Crane music: a natural history of American cranes. Smithsonian Inst. Press, Washington, D.C. 136 pp.

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.

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #14 24 May, 1991.

DeBruin, E. 1991. Field survey to Farmington Resource Area-plot #22 on 8 May 1991.

Dana, R. P. 1991. Conservation management of the prairie skippers H. DACOTAE and H. OTTOE. Station Bulletin 594-1991. Minnesota Agricultural Experiment Station. Univ. of Minnesota, St. Paul, MN. 63 pp.

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.

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.

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

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

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.

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

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.

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

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.

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.

Watson, J. W., M. G. Garrett, and R. G. Anthony. 1991. Foraging ecology of bald eagles in the Columbia River estuary. J. Wildlife Management 55:492-499.

Smith, S. M. 1991. The black-capped chickadee: behavioral ecology and natural history. Cornell Univ. Press, Ithaca. xi + 362 pp.

Anderson, B. and M. Boyles. 1991. Plant/animal occurrence form for Allium gooddingii in 1988. 1 p.

Gustafson, M. E. 1991. Diet and habitat selection in Ohio nesting barn owls (TYTO ALBA). M.S. thesis, Ohio State Univ. ix + 92 pp.

Marron, et al. 1991. An unpublished survey on threatened and endangered plants including San Juan County [no title, incomplete document]. 52 pp.

Sivinski, R. 1991. NM rare plant occurrence record data sheet of 8 July 1991 for Mammillaria viridiflora 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.

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

DeBruin, E. 1991. Field survey to Fort Stanton ACEC - Stop #42, 27 May, 1991.

Reed, S. 1991. Field survey to Capitan Mtd. - Raton Spring 31 May 1991.

Bjorklund, M. 1991. Evolution, phylogeny, sexual dimorphism and mating system in the grackles (QUISCALUS spp.: Icterinae). Evolution 45:608-621.

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.

ECoPlan Inc. 1991? An analysis of wetlands and endangered plant species along the Chama River: and their responses to fluctuating water levels. Part of study of Chama Wild and Scenic River w/ USFS and other agencies.

Kirkeminde, M. 1991. Letter regarding recent visits to existing Allium gooddingii locations in the Gila National Forest dated 2 Jan 1992. 3 pp.

Skaggs, K. 1991. Personal communication to Ellen DeBruin Regarding Oenothera Organensis.

Aldrich, J. W., and F. C. James. 1991. Ecogeographic variation in the American robin. Auk 108:230-249.

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

Confer, J.L., K. Knapp, D. Coker, M. Armstrong, and J. Doherty. 1991. The rapidly changing distribution of the Golden-winged Warber (VERMIVORA CHRYSOPTERA) in central New York. Kingbird 41:5-10.

Grzybowski, J. A. 1991. A closer look: the black-capped vireo. Birding, August 1991, pp. 216-219.

Keast, A., and S. Saunders. 1991. Ecomorphology of the North American ruby-crowned (REGULUS CALENDULA) and golden-crowned (R. SATRAPA) kinglets. Auk 108:880-888.