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Scarbrough, L. 1990. Letter to Bob Sivinski regarding locations for three species, ^Coryphantha sneedii, ^Oenothera organensis, and ^Peniocereus greggii. 3 pages included with map.

Brown, B. T. 1990. Nesting common mergansers in Chihuahua, Mexico. Southwest Nat. 35:88-89.

Firchow, K. M., M. R. Vaughan, and W. R. Mytton. 1990. Comparison of aerial survey techniques for pronghorns. Wildl. Soc. Bull. 18:18-23.

Houston, D. B., et al. 1990. Elk in Olympic National Park: will they persist over time? Natural Areas Journal 10:6-11.

Krupa, J.J. 1990. Bufo cognatus. Catalogue of American Amphibians and Reptiles. 457:1-2.

Purcell, K. L. 1990. Mature upper mixed-coniferous forest-montana chaparral. Journal of Field Ornithology (Supplement) 61:60-61.

Waples, R. S. 1990a. Conservation genetics of Pacific salmon. II. Effective population size and the rate of loss of genetic variability. Journal of Heredity 81:267-276.

Sauer, J. R. 1990. Route-regression analysis of scissor-tailed flycatcher population trends. U.S. Fish and Wildlife Service Biological Report 90:160-163.

Bednarz, J.C., T. Hayden and T. Fischer. 1990. The Raptor and Raven Community of Los Medanos Area in Southern New Mexico: A unique and Significant Resource. In Ecosystem Management Bulletin of the 15th annual Natural Areas Conference, No. 471. Albany,

Coker, D. R, and J. L. Confer. 1990. Brown-headed cowbird parasitism on golden-winged and blue-winged warblers. Wilson Bulletin 102:550-552.

Gawlik, D. E., and K. L. Bildstein. 1990. Reproductive success and nesting habitat of loggerhead shrikes in north-central South Carolina. Wilson Bull. 102:37-48.

Kerpez, T. A., and N. S. Smith. 1990b. Nest-site selection and nest-cavity characteristics of Gila woodpeckers and northern flickers. Condor 92:193-198.

Pashley, D. N., and R. B. Hamilton. 1990. Warblers of the West Indies. III. The Lesser Antilles. Caribbean J. Sci. 26:75-97.

Short, L. L., and J. F. M. Horne. 1990b. The ivory-billed woodpecker - the costs of specialization. Pages 93-8 in A. Carlson and G. Allen (editors). Conservation and Management of Woodpecker Populations. Swedish University of Agricultural Sciences, Depart

Welch, B. L., F. J. Wagstaff, and R. L. Williams. 1990. Sage grouse status and recovery plan for Strawberry Valley, Utah. U.S. Forest Serv. Res. Pap. INT-430. 10 pp.

Burch, J.B. 1989. North American Freshwater Snails. Malacological Publications: Hamburg, Michigan. 365 pp.

Gullion, G. 1989. The ruffed grouse. NorthWord. 144 pp.

Virginia Society of Ornithology. 1989. Virginia's breeding birds: an atlas workbook. William Byrd Press, Richmond, Virginia.

Carvacho, A., et al. 1989. Sterna antillarum browni en el Golfo de California: observaciones sobre una colonia reproductora en una zona vulnerable al impacto turistico. Southwestern Naturalist 34:124-130.

Frederick, P. C., and M. W. Collopy. 1989. Nesting success of five ciconiiform species in relation to water conditions in the Florida Everglades. Auk 106:625-634.

Bureau of Land Management. 1989. Fisheries habitat management on public land. Washington, D.C.

Jones, J. K., Jr. 1989. Distribution and systematics of bats in the Lesser Antilles. Pages 645-660 in C. A. Woods, ed. Biogeography of the West Indies. Sandhill Crane Press, Gainesville, Florida.

Mills, G. S., J. B. Dunning, Jr., and J. M. Bates. 1989. Effects of urbanization on breeding birds community structure in southwestern desert habitats. Condor 91:416-428.

Robert, M., R. McNeil, and A. Leduc. 1989. Conditions and significance of night feeding in shorebirds and other water birds in a tropical lagoon. Auk 106:94-101.

Gould-Falzone, K. 1989. Memorandum through Wildlife Biologist chief, Environmental Office for Director EL, subject: survey for grama grass cactus. Hand-dated 8 Jun 89. . 2 p.

Uihlien, W.B., III and A.L. Gennaro. 1989. Avifauna on the Ladd S. Gordon Wildlife Area: their seasonality, distribution, breeding status, and patterns of usage. Report to NM Dept. of Game and Fish, Nongame Program.

Strong, P. I. V., and J. A. Bissonette. 1989. Feeding and chick-rearing areas of common loons. J. Wildl. Manage. 53:72-76.

Dunmire, W. The New Mexico Nature Conservancy Field Office, 107 Cienega St, Santa Fe, NM 87501. (505)988-3867.

Baird, K.J., and J.P. Rieger. 1989. A restoration design for Least Bell's Vireo habitat in San Diego County. USDA Forest Service, Gen. Tech. Rep. PSW-110.

King, F. W., and R. L. Burke, editors. 1989. Crocodilian, tuatara, and turtle species of the world: a taxonomic and geographic reference. Association of Systematics Collections, Washington, D.C. 216 pp.

Rhea, B. Wagner, S. (1989) Final Report, Spotted Owl Survey on the Lincoln National Forest. Lincoln Supervisor's Office, Lincoln National Forest, USFS. 131 p.

Hammerson, G. A. 1989. A field survey of amphibians in the Rocky Mountains of Colorado, August 1989. Report to the Colorado Division of Wildlife and the Colorado Natural Areas Program. 53 pp.

Serrentino, P. 1989. A survey of breeding northern harriers (Circus cyaneus) on Block Island, 1989. Unpublished report submitted to Rhode Island Division of Fish and Wildlife. West Kingston, Rhode Island.

Burger, J., and R. T. Zappalorti. 1989. Habitat use by pine snakes (Pituophis melanoleucus) in the New Jersey Pine Barrens: individual and sexual variation. J. Herpetol. 23:68-73.

DeBenedictis, P.A. 1989. Gleanings from the technical literature: recent studies on some water birds. Birding 21(3):166-168.

Griffith, J. S. and T. R. Tiersch. 1989. Ecology of fishes in Redfield Canyon, Arizona, with emphasis on Gila robusta intermedia. Southwestern Naturalist 34:131-134.

McKenzie, P. M., and R. E. Noble. 1989. Sight records for Connecticut warbler (OPORORNIS AGILIS) and yellow-throated vireo (VIREO FLAVIFRONS) in Puerto Rico. Florida Field Nat. 17:69-72.

Thrailkill, J., and M. A. Bias. 1989. Diets of breeding and nonbreeding California spotted owls. J. Raptor Res. 23:39-41.

Dunmire, W.W. 1989. Potential biological special management areas in the Roswell Resource Area, Bureau of Land Management. Unpubl. report to BLM, Roswell, NM.

Novak, P. 1989. Breeding ecology and status of loggerhead shrike (LANIUS LUDOVICIANUS) in New York. Master's thesis, Cornell Univ., Ithaca, New York.

Ordonez, V. October 4, 1989. Letter regarding results of Aster laevis var guadalupensis survey. Guadalupe Ranger District, Carlsbad, NM.

Brown, B. T., et al. 1989. Changes in winter distribution of bald eagles along the Colorado River in Grand Canyon, Arizona. J. Raptor Research 23:110-113.

Ferris, C.D. 1989 (1998). Euphydryas anicia and E. chalcedona in Idaho (Lepidoptera: Nymphalidae). Journal of Research on the Lepidoptera 26(1-4):109-115.

Kerlinger, P., and C. Sutton. 1989. Black rail in New Jersey. Records of New Jersey Birds 15(2):22-26.

Olendorff, R. R., D. D. Bibles, M. T. Dean, J. R. Haugh, M. N. Kochert. 1989. Raptor habitat management under the U.S. Bureau of Land Management Multiple-use Mandate. Raptor Research Reports. 8:1-80.

Reid, F. A. 1989. Differential habitat use by waterbirds in a managed wetland complex. University of Missouri, Columbia, Missouri. Ph.D. dissertation. 243 pp.

Straub, R. W. 1989. Red-winged blackbird damage to sweet corn in relation to infestations of European corn borer (Lepidoptera: Pyralidae). J. Econ. Entomol. 82:1406-1410.

Wronecki, P. P., R. A. Dolbeer, and T. W. Seamans. 1989. Field trials of alpha-chloralose and DRC-1339 for reducing numbers of herring gulls. U.S. For. Serv. Gen. Tech. Rep. RM-171:148-153.

Askham, L. R., and J. K. Fellman. 1989. The use of DMA to reduce robin predation on cherries. U. S. For. Serv. Gen. Tech. Rep. RM-171:116-119.

Caldwell, M.M. and J.H. Richards. 1989. Hydraulic lift: water efflux from upper roots improves effectiveness of water uptake by deep roots. Oecologia. 79:1-5.

Davis, R., and S. J. Bissell. 1989. Distribution of Abert's squirrel (SCIURUS ABERTI) in Colorado: evidence for a recent expansion of range. Southwest. Nat. 34:306-309.

Harte, J., and E. Hoffman. 1989. Possible effects of acidic deposition on a Rocky Mountain population of the tiger salamander AMBYSTOMA TIGRINUM. Conservation Biology 3:149-158.

Macartney, J. M. 1989. Diet of the northern Pacific rattlesnake, Crotalus viridis oreganus, in British Columbia. Herpetologica 45:299-304.

Pollock, K. H., C. T. Moore, W. R. Davidson, F. E. Kellogg, and G. L. Doster. 1989. Survival rates of bobwhite quail based on band recovery analysis. Journal of Wildlife Management 53:1-6.

Szaro, R.C. Riparian forest and scrubland community types of Arizona and New Mexico. Desert Plants 9(3-4).

U.S. Department of the Interior, Bureau of Land Management, Las Cruces District, Socorro Resource Area. 1989. Socorro Resource Management Plan. BLM-NM-PT-89-021-4410.

Heinrich, B. 1989. Ravens in winter. Summit Books, New York. 379 pp.

Worthington, R.D. 1989. An annotated checklist of the native and naturalized flora of El Paso County, Texas. El Paso Southwest Botanical Miscellany No. 1. 56 pp.

Morrison, R.I.G. and R.K. Ross. 1989. Atlas Nearctic shorebirds on the coast of South America. Volume 2. Canadian Wildlife Service. Ottawa, Canada.