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Spellenberg, R.. 1990. Unpublished letter to Bill Dunmire of the NM Nature Conservancy regarding type specimens of Senecio spellenbergii, dated 28 Feb 1990. 3 p.

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.

Benkman, C. W. 1990. Intake rates and the timing of crossbill reproduction. Auk 107:376-386.

Cavanagh, P. M. 1990. Above-ground nesting by burrowing owls. J. Raptor Res. 24:68-69.

Garrison, B.A. 1990. Trends in winter abundance and distribution of Ferruginous Hawks in California. Trans. West. Sec. Wildl. Soc. 26:51-56.

Johnston, R. F., and S. G. Johnson. 1990. Reproductive ecology of feral pigeons. Pages 237-252 in J. Pinowski and J. D. Summers-Smith, editors. Granivorous birds in the agricultural landscape. Polish Scientific Publisher, Warszawa. 360 pp.

Max, T. A., R. A. Souter, and K. A. O'Halloran. 1990. Statistical estimators for monitoring spotted owls in Oregon and Washington in 1987. U.S. Forest Service Research Paper PNW-420. 13 pp.

Smith, G. W. 1990. Home range and activity patterns of black-tailed jackrabbits. Great Basin Naturalist 50:249-256.

Wilson, S. D. and J. M. Shay. 1990. Competition, fire, and nutrients in a mixed-grass prairie. Ecology 71:1959-67.

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.

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

Harrell, R.M., J.H. Kerby and R.V. Minton. 1990. Culture and propagation of striped bass and its hybrids. American Fisheries Society, Bethesda, Maryland. 323 pp.

Castetter, R. 1990. Field survey to Gray Ranch - Deer Creek. 5, July, 1990.

Mehlhop, P. 1990. Field survey to Gray Ranch - Clanton Draw, just E. of Nat. Forest bdry. 16 Aug., 1990, 11pm night visit.

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.

Falvey, B. Hall, B. (1990) 1990 Mexican Spotted Owl Inventory Form and Maps. Sandia Ranger District, Cibola National Forest, USFS. 12 p.

Santa Fe National Forest. 1990. Field forms and maps for Northern Goshawk nest and territory monitoring for 1990.

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.

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.

Mehlhop, P. 1990. Field survey to Gray Ranch - S. facing talus near head of Black Bill Canyon. August 20, 1990.

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.

Dunmire, W.W. 1990. An investigation of biological resources focusing on plant and animal communities with recommendations for future management actions. Biological inventory, Black River Acquisition Area, Carlsbad Resource Area. Prepared for BLM by TNC F

Propst, D.L. (1990) 1990 New Mexico Fish Community Monitoring Study. Retrieved from Silver City Ranger District, Gila National Forest, USFS. 23 p.

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.

Mello, M.J. 1990. Documentation of new habitats for Papaipema sulphurata and survey of known colonies to determine population stability. Prepared for Massachusetts Natural Heritage & Endangered Species Program. 7pp.

Unknown (1990) Data From Flagstaff RM. Retrieved from Silver City Ranger District, Gila National Forest, USFS. 2 p.

DeBruin, E. 1990. Field survey to Organ Mts, Spring 1990.

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.

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.

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Hershberger, W. 1989. Loggerhead shrike survey 1990 (LANIUS LUDOVICIANUS), Frederick and Washington counties of Maryland. Unpubl. report, Maryland Natural Heritage Program, Annapolis, Maryland.

Sugg, D.W.. 1990. Unpublished listing of reptile specimens from Museum of Southwestern Biology (MSB). . 19 p.

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Clark, B. K., and D. W. Kaufman. 1990. Short-term responses of small mammals to experimental fire in tallgrass prairie. Can. J. Zool. 68:2450-2454.

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.

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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.

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.

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Hatch, S.L., K.N. Gandhi, and L.E. Brown. 1990. Checklist of the vascular plants of Texas. Texas Agricultural Experiment Station, College Station. 158 pp.

Castetter, R. 1990. Field survey to Gray Ranch - Deer Creek. 8 July, 1990.

Mehlhop, P. 1990. Field survey to Gray Ranch - Lard Tank, Playas Valley. 23 Sept. 1990.

Sibley, Charles G. and Burt L. Monroe, Jr. 1990. Distribution and Taxonomy of Birds of the World. Yale University Press. New Haven, Connecticut and London. 1111pp.