George, S. B. 1990. Unusual records of shrews in New Mexico. Southwest. Nat. 35:464-465.

Johnson, R. K., R. R. Roth, and J. T. Paul Jr. 1990. Mass variation in breeding Wood Thrushes. The Condor 92:89-96.

McCranie, J. R. 1990. Nerodia erythrogaster. Cat. Am. Amph. Rep. 500.1-500.8.

Smith, P. W., and S. A. Smith. 1990. The identification and status of the Bahama swallow in Florida. Birding 22:264-271.

Windberg, L.A. and C.D. Mitchell. 1990. Winter diets of coyotes in relation to prey abundance in southern Texas. J. Mamm. 71(3): 439-447.

Bratton, S. P., S. Hendricks. 1990 (1988). Wood stork nesting, roosting, and foraging at Cumberland Island, Georgia. Oriole 53:17-24.

Dragoo, J. W., et al. 1990. Evolutionary and taxonomic relationships among North American arid-land foxes. J. Mammalogy 71:318-332.

Henke, S. E., and S. Demarais. 1990. Capturing jackrabbits by drive corral on grasslands in west Texas. Wildl. Soc. Bull. 18:31-33.

Marsh, P. C., and W. L. Minckley. 1990. Management of endangered Sonoran topminnow at Bylas Springs, Arizona: description, critique, and recommendations. Great Basin Naturalist 50:265-272.

Price, A. H. 1990. Phrynosoma cornutum. Cat. Am. Amph. Rept. 469.1-469.7.

Matthews, J.R. and C.J. Moseley (eds.). 1990. The Official World Wildlife Fund Guide to Endangered Species of North America. Volume 1. Plants, Mammals. xxiii + pp 1-560 + 33 pp. appendix + 6 pp. glossary + 16 pp. index. Volume 2. Birds, Reptiles, Amphibia

DeBruin, E. 1990. Field survey to the Organ Mts, Soledad and Beasley Canyons, May 7, 1990.

Muldavin, Esteban. 1990. Community field surveys to the Gray Ranch.

DeGeus, D. W. 1990. Productivity and habitat preferences of loggerhead shrikes inhabiting roadsides in a midwestern agroenvironment. Iowa State University, Ames, Iowa. MS thesis.

U.S. Fish and Wildlife Service (USFWS). 1990. Draft revised recovery plan for the eastern timber wolf. 93 pp.

Spellenberg, R. 1990. Page 5 of letter to USFWS Regional Director. 18 Sept 1990.

Brown, J.H. and E.J. Heske. 1990. Control of a desert grassland transition by a keystone rodent guild. Science. 250:1705-1707.

Frazer, N. B., J. W. Gibbons, and J. L. Greene. 1990c. Life table of a slider turtle population. Pages 183-200 in J. W. Gibbons, editor. Life history and ecology of the slider turtle. Smithsonian Institution Press, Washington, D.C.

Mehlhop, P. 1990. Field survey to Gray Ranch - Indian Creek Canyon, Aspen Spring. 19-21 Sept. 1990.

Mitchell, L. J., and R. A. Lancia. 1990. Breeding bird community changes in a Bald Cypress-Tupelo wetland following timber harvesting. Pages 189-201 in Proceedings of the Annual Conference of the Southeasten Association of Fish and Wildlife Agencies, Vol.

Reynolds, R.T., and B.D. Linkhart. 1990. Extra-pair copulation and extra-range movements in flammulated owls. Ornis Scandinavica 21:74-77.

Williams, J. E., M. A. Stern, A. V. Munhall, and G. A. Anderson. 1990. Conservation status of threatened fishes in Warner Basin, Oregon. Great Basin Naturalist 50(3):243-8.

Evers, D.C. 1990. Yellow Rail, COTURNICOPS NOVEBORACENSIS (Gmelin). Draft species abstract for Michigan Heritage Program, Michigan Department of Natural Resources, Lansing, MI.

Rinne, J.N. (1990) Unpublished USDA Forest Service Memo Conrtaining Estimated Fish Counts for Multiple Sites. Retrieved from Silver City Ranger District, Gila National Forest, USFS. 4 p.

Gorman, M. L., and R. D. Stone. 1990. The natural history of moles. Cornell Univ. Press. 208 pp.

Ballen, M. 1990. 1990 Mexican Spotted Owl Inventory Form

Orr, Mary V. 1990. Threatened, endangered and sensitive plants observation record for Lilium philadelphicum. US Forest Service

Wyoming Natural Diversity Database. No date. Unpublished data on file. Wyoming Natural Diversity Database, Laramie, WY.

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.

Knight, Paul J., et al. 1990. An Environmental Assessment of the Ova Noss Family Partnership Expedition into Victorio Peak. ECoPlan, Inc. and Human Systems Research, Inc. Control number EA-00990, work request #FEA0337OP. 153 pp.

Van Devender, R. 1990. Letter to Sue Rutman, U.S. Fish and Wildlife Service, with historic location of Pediomelum pentaphyllum.

Medin, D.E., and W.P. Clary. 1990. Bird and small mammal populations in a grazed and ungrazed riparian habitat in Idaho. U.S.D.A. Forest Service, Intermountain Research Station, Research Paper INT-425.

Bennett, W. A. 1990. Scale of investigation and the detection of competition: an example from the house sparrow and house finch introductions in North America. Am. Nat. 135:725-747.

Cohn, J. P. 1990. Endangered wolf population increases. BioScience 40(9):628-632.

Glenn, J. L., R. C. Straight, and J. W. Sites, Jr. 1990. A plasma protein marker for population genetic studies of the desert tortoise (XEROBATES AGASSIZI). Great Basin Naturalist 50:1-?.

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.