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Jones, J. K., Jr., and R. W. Manning. 1990. Additional comments on big brown bats (Eptesicus fuscus) from northwestern Texas. Southwest. Nat. 35:342-343.

McCaskie, G., et al. 1990. Notes on identifying arctic and Pacific loons in alternate plumage. Birding 22:70-73.

Stahlecker, D.W. and J.J. Rawinski. 1990. First records for the boreal owl in New Mexico. The Condor 92:517-519.

Bucyanayandi, J. D., and J. M. Bergeron. 1990. Effects of food quality on feeding patterns of meadow voles along a community gradient. Journal of Mammalogy 71:390-6.

Easter-Pilcher, A. 1990. Cache size as an index to beaver colony size in northwestern Montana. Wildlife Society Bulletin 18:110-113.

Hershler, R. and W.L. Pratt. 1990. A new Pyrgulopsis (Gastropoda:Hydrobiidae) from southeastern California, with a modelfor historical development of the Death Valley hydrographic system. Proc. Biol. Soc. Wash. 103(2): pp. 279-299.

Marti, C. D. 1990. Sex and age dimorphism in the barn owl and a test of mate choice. Auk 107:246-54.

Reimchen, T. E. 1990. Introduction and dispersal of the Pacific treefrog, Hyla regilla, on the Queen Charlotte Islands, British Columbia. Canadian Field Naturalist 105:288-290.

Peterson, R. T. 1990b. A field guide to western birds. Third edition. Houghton Mifflin Co., Boston. 432 pp.

Bates, B.M., R.W. Robinson, and C. Jeffrey, eds. 1990. The Biology and Utilization of the Curcurbitaceae. Cornell University Press, Ithaca NY. ca.

DeBruin, E. 1990. Field survey to Organ Mts, Fillmore Canyon on May 10, 1990.

Rosenburg, C. P. 1990a. Barn owl nest trays and boxes. Virginia Department Game and Inland. Fish. Educational sheet, Richmond, Virginia. Unpublished. 3 pp.

Allen, J. Tudek, B. (1990) Assorted Mexican Spotted Owl Forms. Silver City Ranger District, Gila National Forest, USFS. 83 p.

Gila National Forest. 1990. Reserve Ranger District Spotted Owl habitat description - form 2.

Sugg, D.W. 1990. Unpublished listing of amphibians specimens from MSB. 5 pp.

Brooks, B. L. and S. A. Temple. 1990a. Habitat availability and suitability for loggerhead shrikes in the Upper Midwest. Am. Midl. Nat. 123: 75-83.

Frederick, P. C., et al. 1990. Relative abundance and habitat preferences of least bitterns (IXOBRYCHUS EXILIS) in the Everglades. Florida Field Nat. 18:1-20.

Hardy, T. B., B. Bartz, and W. Carter. 1990. Instream flow recommendations for the fishes of Aravaipa Creek, Arizona. Submitted to the Nature Conservancy. Twelve-Nine, Inc., Logan, Utah.

Mehlhop, P. 1990. Field survey to Gray Ranch - Clanton Draw to Cloverdale to Larson. 22 Oct. 1990.

Morris, R. D., and J. Siderius. 1990. A treatment for prevention of hatching in field-incubated ring-billed gull eggs. J. Wildl. Manage. 54:124-130.

Ryberg. 1990. Pediomelum pentaphyllum. Memoirs of the New York Botanical Garden. 61:82-84.

Willey, D. W. 1990. Nesting success of San Clemente sage sparrows. Southwestern Naturalist 35:28-31.

Galeano - Popp, R. 1990. Unpub. notes from 90-11-05 phone conversation with David Ferguson re: Talinum humile with attached modem printout from USDA - Forest Service sensitive species file. 3 pp.

Scott, N.J. 1990. Unpublished listing of Rana species specimens at MSB. 2 pp. USFWS, UNM - Biology Dept., Albuquerque, NM 87131

Johnston, M.C. 1990. The vascular plants of Texas: A list, updating the manual of the vascular plants of Texas. 2nd edition. Privately published, Austin, Texas. 107 pp.

Barlow, P. 1990. Inventory of endangered flora, Naval Ordnance Missile Test Station, Sixteen Inch Gun and Beach Head Sites, White Sands Missile Range, Socorro and Sierra Counties, New Mexico.

Painter, C.W. 1990. Herpetofauna of New Mexico. Compiled for the New Mexico Department of Game and Fish.

Dowling, T. E. 1990. Assistant professor. Arizona State University, Tempe, AZ.

Mehlhop, P. 1990. Field survey to Gray Ranch - Playas Valley with Ellen DeBruin. 21 Sept. 1990.

Burns, K. J., and R. M. Zink. 1990. Temporal and geographic homogeneity of gene frequencies in the fox sparrow (PASSERELLA ILIACA). Auk 107:421-425.

Glenn, J. L., and R. C. Straight. 1990. Venom characteristics as an indicator of hybridization between Crotalus viridis viridis and Crotalus scutulatus in New Mexico. Toxicon 28:857-862.

Kumirai, A., and J. K. Jones, Jr. 1990. Nyctinomops femorosaccus. Am. Soc. Mamm., Mammalian Species No. 349:1-5.

Unknown (1990) Map of Survey for Sopora gypsohila var. guadalupensis. Retrieved from Guadalupe Ranger District, Lincoln National Forest, USFS. 2 p.

Morton, E. S. 1990. Habitat segregation by sex in the hooded warbler: experiments on proximate causation and discussion of its evolution. Am. Nat. 135:319-333.

Rohwer, S., and J. Manning. 1990. Differences in timing and number of molts for Baltimore and Bullock's orioles: implications to hybrid fitness and theories of delayed plumage maturation. Condor 92:125-140.

Sharps, J. C. and D. W. Uresk. 1990. Ecological review of black-tailed prairie dogs and associated species in western South Dakota. Great Basin Naturalist 50:339-45.

Lincoln National Forest. 1990. Mexican Spotted Owl daytime follow-up visit form, survey for Mexican Spotted Owl.

Wakkinen, W. L. 1990. Nest site characteristics and spring-summer movements of migratory sage groude in southeaster Idaho. M.S. thesis, University of Idaho, Moscow, ID.

Dunmire, W. 1990. Plant collection records 1991. 5 p.

Reading, R. 1990. Prairie dogs - a link in the chain. In Bureau of Land Management, Working toward recovery. Bureau of Land Mangement, Montana/Dakotas.

Berna, H. J. 1990. Observations on the dwarf shrew (Sorex nanus) in northern Arizona. Great Basin Nat. 50:161-165.

Cooper, S. 1990. Notes on piper plover nesting at Cape Hatteras National Seashore during 1987. Chat 54:1-6.

Goosen, J. P. 1990. Piping plover research and conservation in Canada. Blue Jay 48:139-153.

Jones, K. B. 1990. Habitat use and predatory behavior of Thamnophis cyrtopsis (Serpentes: Colubridae) in a seasonally variable aquatic environment. Southwest. Nat. 35:115-122.

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Stauffer, D. F., G. A. Cline, and M. J. Tonkovich. 1990. Evaluating potential effects of CRP on bobwhite quail in Piedmont Virginia. Transactions of the North American Wildlife Conference 55:57-67.

Blokpoel, H., and R. M. G. Hamilton. 1990. Effects of applying white mineral oil to chicken and gull eggs. Wildl. Soc. Bull. 17:435-441.

Ely, D. C. 1990. A pair of pileated woodpeckers in the Wichita Mountains Wildlife Refuge, Comanche County, Oklahoma. Bull. Okla. Ornithol. Soc. 23:24-5.

Hickey, M. B. C., and M. B. Fenton. 1990. Foraging by red bats (LASIURUS BOREALIS): do intraspecific chases mean territoriality? Can. J. Zool. 68:2477-2482.

Meng, A., R. E. Carter, and D. T. Parkin. 1990. The variability of DNA fingerprints in three species of swan. Heredity 64:73-80.

Riddle, B. R., and R. L. Honeycut. 1990. Historical biogeography in North American arid regions: an approach using mitochondrial-DNA phylogeny in grasshopper mice (genus Onychomys). Evolution 44:1-15.

Stall, D. T. 1990. Microtus ochrogaster. Am. Soc. Mamm., Mammalian Species 355:1-9.

Price, A.H. 1990. Catalogue of American amphibians and reptiles. Society for the Study of Amphibians and Reptiles.

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Advanced Sciences, Inc. 1990. Threatened and endangered species survey at the Nuclear Effects Laboratory. WSMR Environmental Services Report no. REC-11389, prepared under WSMR Contract DAAD07-90-C-0018, Work Assignment Order 200-4. 31 August 1990. . 17 p.

Hawes, D. 1990. Threatened and endangered species habitat study area notes form for Ipomopsis sancti-spiritus. 2 p.

Weltzin, J. F. 1990. The potential role of prairie dogs in regulating honey mesquite population dynamics. Texas A&M University. M.S. Thesis. Unpublished. 63 pp.

Tims, P. Aug 1, 1990. Threatened, endangered and sensitive plants observation record for Cirsium vinaceum on 1 August 1990. Lincoln NF, USFS.

Brooks, B. L., and S. A. Temple. 1990b. Dynamics of a loggerhead shrike population in Minnesota. Wilson Bull. 102:441-450.