Pitocchelli, J. 1990. Plumage, morphometric, and song variation in mourning (OPORORNIS PHILADELPHIA) and MacGillivray's (O. TOLMIEI) warblers. Auk 107:161-171.

Scott, T. A., and M. L. Morrison. 1990. Natural history and management of the San Clemente loggerhead shrike. Western Foundation of Vertebrate Zoology, Proceedings 4:23-57.

Gold, I. 1990. Threatened and endangered plant observation. observation form for Gilia formosa 10 Oct. 1990. 1 page & map.

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 Unpublished letter to Bill Dunmire of the NM Nature Conservancy regarding type specimens of Senecio spellenbergii, dated 28 Feb 1990. 3 p.

Cely, J. E. and J. A. Sorrow. 1990. The American Swallow-tailed Kite in South Carolina. Nongame and Heritage Trust Fund Publication 1. South Carolina Wildlife and Marine Resources Department, Columbia, South Carolina.

Bednarz, J. C., D. Klem Jr., L. J. Goodrich, and S. E. Senner. 1990. Migration counts of raptors at Hawk Mountain, Pennsylvania, as indicators of population trends, 1934-1986. The Auk 107:96-109.

Carpenter, T. W., A. L. Carpenter, and S. R. Smith. 1990. Spring migration of blue jays at Whitefish Point, Michigan, as studied through banding. J. Field Ornithol. 61:419-425.

Garrot, R. A., and L. Taylor. 1990. Dynamics of a feral horse population in Montana. J. Wildl. Manage. 54:603-612.

Johnson, C. E., and J. S. Ramsey. 1990. Redescription of Semotilus thoreauianus Jordan, 1877, a cyprinid fish of the southeastern United States. Copeia 1990:119-130.

MacArthur, R. A., and A. P. Dyck. 1990. Aquatic thermoregulation of captive and free-ranging beavers (Castor canadensis). Canadian Journal of Zoology 68:2409-2416.

Sauer, J. R., and S. Droege. 1990. Recent population trends of the eastern bluebird. Wilson Bull. 102:239-252.

Williams, L. R., and G. N. Cameron. 1990. Intraspecific response to variation in food resources by Attwater's pocket gopher. Ecology 71:797-810.

Toepfer, J.E., R.L. Eng, and R.K. Anderson. 1990. Translocating prairie grouse: what have we learned? Transactions of the 55th North American Wildlife & Natural Resource Conference: 569-579.

Bock, C. E., H. M. Smith, and J. H. Bock. 1990. The effect of livestock grazing upon abundance of the lizard, Sceloporus scalaris, in southeastern Arizona. J. Herpetol. 24:445-446.

Dickerman, R. W. 1990. Geographic variation in the juvenal plumage of the common nighthawk (CHORDEILES MINOR) in North America. Auk 107:610-613.

Gutierrez, R. J., and J. Pritchard. 1990. Distribution, density, and age structure of spotted owls on two southern California habitat islands. Condor 92:491-495.

Machado, C. G. 1990. Vireo olivaceus (Vireonidae): uma espécie migratória nos bandos mistos de aves na Mata Atlântica do sudeste brasileiro. Ararajuba 1.

Plummer, M. V. 1990. Nesting movements, nesting behavior, and nest sites of green snakes (Opheodrys aestivus) revealed by radiotelemetry. Herpetologica 46:190-195.

Sinervo, B. 1990. The evolution of maternal investment in lizards: an experimental and comparative analysis of egg size and its effects on offspring performance. Evolution 44:279-294.

S90SCOSBNMUS, Legacy reference. Physical copy not yet located.

Kaufman, K. 1990. A field guide to advanced birding. Houghton Mifflin Co., Boston. xiv + 299 pp.

Castetter, R. 1990. Field survey to Gray Ranch-Deer Creek on 6 July 1990.

Muldavin, E. 1990. Community field survey to the Organ Mountains, Sept. 4, 1990 to Sept. 28, 1990.

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.

Abeyta, A. 1990. 1990 Mexican Spotted Owl Inventory Form

Boyce, M. B., R. K. Clark and D. J. Jessop. 1990. Recent advances in the diagnosis and treatment of psoroptic scabies in bighorn sheep. Biennial Symposium of the Northern Wild Sheep and Goat Council 7:125-128.

Duvall, D., M. J. Goode, W. K. Hayes, J. K. Leonhardt, and D. Brown. 1990. Prairie rattlesnake vernal migrations: field experimental analyses and survival value. National Geographic Research 6:457-469.

Kimmel, J. T. and R. H. Yahner. 1990. Response of northern goshawks to taped conspecific and great horned owl calls. Journal of Raptor Research 24:107-112.

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

Miller, B. K. 1990. Factors affecting survival of transplanted eastern wild turkeys in Indiana. Wildl. Soc. Bull. 18:65-70.

Reitsma, L. R., R. T. Holmes, and T. W. Sherry. 1990. Effects of removal of red squirrels, TAMIASCIURUS HUDSONICUS, and eastern chipmunks, TAMIAS STRIATUS, on nest predation in a northern hardwood forest: an artificial nest experiment. Oikos 57:375-380.

Wells, H., W. Mason and J. R. Stewart. 1990. Prairie dog food preference and the photosynthetic pathway-selective herbivory hyptothesis. Bull. South. Calif. Acad. Sci. 89:97-108.

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.

U.S. Fish and Wildlife Service (USFWS). 1990. American woodcock management plan. USFWS, Office of Migratory Bird Management. 11 pp.

Advanced Sciences, Inc. 1990. Threatened and endangered species survey at the ABC-1 Tank Impact Area. WSMR Environmental Services Report no. EA-03-88, prepared under WSMR Contract DAAD07-90-C-0018, Work Assignment Order 200-11. 5 October 1990. . 13 p.

Museum of Southwest Biology. 1990. Unpublished listing of mammal species specimens from Hidalgo County at MSB. Database print-out.

Wessman, L. 1990. Survey trip for Astragalus kerrii. Unpub. letter and map to USFS, Cloudcroft Ranger District, Forest Threatened and Endangered Plant Coordinator, John Connors, on 18 May 1990. 2 pp. + map.

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

Berna, H.J. 1990. Seven bat species from the Kaibab Plateau, Arizona, with a new record of Euderma maculatum. Southwest. Nat. 35(3):354-356.

DeBruin, E. 1990. Field survey to Soledad Canyon, Organ Mts. Sept 28, 1990.

Boyce, M. S., and L. L. Irwin. 1990. Viable populations of spotted owls for management of old growth forests in the Pacific Northwest. Pages 133-135 in Mitchell et al., eds. Ecosystem management: rare species and significant habitats. New York State Mus.

Gaston, A. J. 1990. Population parameters of the ancient murrelet. Condor 92:998-1011.

Klott, J. H., and F. G. Lindzey. 1990. Brood habitats of sympatric sage grouse and Columbian sharp-tailed grouse in Wyoming. J. Wildl. Manage. 54:84-88.

Porter, S. E. 1990. Impacts of development on saltmarshes. Maritmes 34:7-8.

Sedgewick, J. A., and F. L. Knopf. 1990. Habitat relationships and nest site characteristics of cavity nesting birds in cottonwood floodplains. Journal of Wildlife Management 54(1):112-124

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.

Fischer, T.F. 1990. Revision of species inventory checklists for Sandia National Laboratories, Albuquerque Bernalillo County New Mexico. Albuquerque, NM: Sandia National Laboratores; Contractor Report SAND90-7098. 40 p.

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.

U.S. Fish and Wildlife Service (USFWS). 1990. Endangered and threatened wildlife and plants. Federal register 55(35):6190. February 21.

DeMarais, B. D. 1990. Graduate student. Arizona State University, Tempe, AZ. Personal communication, April 19, 1990.

Bouta, R. P., and R. E. Chambers. 1990. Status of threatened spruce grouse populations in New York: a historical perspective. Pages 82-91 in Mitchell et al., eds. Ecosystem management: rare species and significant habitats. New York State Mus. Bull. 471.