Matthews, W. J. 1987. Geographic variation in Cyprinella lutrensis (Pisces: Cyprinidae) in the United States, with notes on Cyprinella lepida. Copeia 1987:616-637.

Unitt, P. 1987. Empidonax traillii extimus: an endangered subspecies. Western Birds 18:137-162.

Vogt, T.F. 1987. A preliminary report on threatened or endangered aquatic insects associated with lotic habitats in Illinois. Natural Lands Institute, Rockford, IL. 12pp.

Dunmire, W. and M. Toll. 1987. Establishment Record for Largo Mesa Research Natural Area, Gila National Forest. US Forest Service, 75 p.

Dunmire, W. and M. Toll. 1987. Establishment Report for McCrystal Meadow Research Natural Area, Carson National Forest. US Forest Service, 50 p.

Wemmer, C. M., editor. 1987. Biology and management of theCervidae: proceedings of a symposium. Smithsonian Inst. Press, Washington, D. C. 1000 pp.

Schweitzer, D. F. 1987. Catocala pretiosa, the precious underwing moth: results of a global status survey with a recommendation for retention in Category 2. Report from TNC to USFWS, Newton Corner, MA.

Lee, L. A., and J. W. Terrell. 1987. Habitat suitability index models: flathead catfish. U.S. Fish and Wildlife Service Biological Report 82(10.152). 39 pp.

Burton, G. 1987. Recovering the threatened apache trout and endangered Gila trout in Arizona and New Mexico. Western Proceedings, 67th Annual Conf of the Western Assoc Fish and Wildlife Agencies, Salt Lake City, Utah. P 361.

Gehlbach, F. R., and R. S. Baldridge. 1987. Live blind snakes (Leptotyphlops dulcis) in eastern screech owl (Otus asio) nests: a novel commensalism. Oecologia 71:560-563.

United Fish and Wildlife Service. 1987. Endangered and threatened species of Arizona and New Mexico. United States Fish and Wildlife Service, Dept. of the Interior.

Lee, H. K., and R. J. Baker. 1987. Cladistical analysis of chromosome evolution in pocket gophers of the Cratogeomys castanops complex (Rodentia: Geomyidae). Occas. Pap. Mus. Texas Tech Univ. 114:1-15.

Roze, V. 1987. Denning and winter range of the porcupine. Can. J. Zool. 65:981-986.

Welsh, D. A. 1987. Cape May Warbler. Pp. 376-377 in Atlas of the breeding birds of Ontario. (M. D. Cadman, P. F. J. Eagles, and F. M. Helleiner, eds.). Univ. of Waterloo Press, Waterloo, ON.

Dunmire, W. 1987. Establishment Record for Haynes Canyon Research Natural Area, within Lincoln National Forest, Otero county, New Mexico.

Firstencel, H. 1987. The black tern (CHLIDONIAS NIGER Linn.): breeding ecology in upstate New York and results of pesticide residue analysis. M.S. thesis, State Univ. of New York, Rockport. 63 pp.

Finch, D.M., S.H. Anderson, and W.A. Hubert. 1987. Habitat suitability index models: Lark Bunting. U.S. Fish and Wildlife Service, Biological Report 82. 16 pp.

Brennan, L. A., W. M. Block, and R. J. Gutierrez. 1987. Habitat use by mountain quail in northern California. Condor 89:66-74.

Galbraith, D. A., M. W. Chandler, and R. J. Brooks. 1987. The fine structure of home ranges of male Chelydra serpentina: are snapping turtles territorial. Can. J. Zool. 65:2623-2629.

Lim, B. K. 1987. Lepus townsendii. Am. Soc. Mamm., Mammalian Species 288:1-6.

Ogden, J. C., D. A. McCrimmon, Jr., G. T. Bancroft, and B. W. Patty. 1987. Breeding populations of the wood stork in the southeastern United States. Condor 89:752-759.

Servos, M. C. 1987. Summer habitat use by great gray owls in southeastern Manitoba. Pp. 108-114 in Nero, R. W., et al., eds. Biology and conservation of northern forest owls. USDA For. Serv., Gen. Tech. Rep. RM-142.

U.S. Fish and Wildlife Service (USFWS). 2 November 1987. Determination of endangered and threatened status for two populations of roseate tern. Federal Register 52:42064-42068.

Hemstrom, M. A., S. E. Logan, and W. Pavlat. 1987. Plant association and management guide, Willamette National Forest. USDA Forest Service Report R6-Ecol 257-B-86. Pacific Northwest Region, Portland, OR. 312 pp.

Clark, R. G., and P. J. Weatherhead. 1987. Influence of population size on habitat use by territorial male red-winged blackbirds in agricultural landscapes. Auk 104: 311-315.

Fuller, T. K., and J. A. Markl. 1987. Beaver, Castor canadensis, colony density in the Bearville Study Area, northcentral Minnesota. Canadian Field-Nat. 101:597-598.h

Laymon, S. A., and M. D. Halterman. 1987b. Can the western subspecies of Yellow-billed Cuckoo be saved from extinction? Western Birds 18:19-25.

Reynolds, R.T., and B.D. Linkhart. 1987a. Fidelity to territory and mate in flammulated owls. Pages 234-238 in R.W. Nero, R.J. Clark, R.J. Knapton, and R.H. Hamre, editors. Biology and conservation of northern forest owls. USDA Forest Service, Gen. Tech.

Wierenga, P.J., J.M.H. Hendrickx, M.H. Nash, J. Ludwig, and L.A. Daugherty. 1987. Variation of soil and vegetation with distance along a transect in the Chihuahuan Desert. Journal of Arid Environments. 13:53-63.

Graber, J. W., R. R. Graber, and E. L. Kirk. 1987. Illinois birds: Corvidae. Illinois Nat. Hist. Surv. Biol. Notes No. 126.

Helfer, J. R. 1987. How to Know the grasshoppers, crickets, cockroaches and their allies. Dover Publications, Inc., New York. 363 pp.

Ahlquist, J. E., et al. 1987. Divergence of the single-copy DNA sequences of the western grebe (AECHMOPHORUS OCCIDENTALIS) and Clark's grebe (A. CLARKII), as indicated by DNA-DNA hybridization. Postilla No. 200.

Cincotta, R. P., D. W. Uresk, and R. M. Hansen. 1987. Demography of black-tailed prairie dog populations reoccupy-ing site treated with rodenticide. Great Basin Nat. 47:339-343.

Huntly, N., and R. S. Inouye. 1987. Small mammal populations of an old-field chronosequence: successional patterns and associations with vegetation. Journal of Mammalogy 68:739-745.

Millsap, B. A., and P. A. Millsap. 1987. Burrow nesting by common barn-owls in north central Colorado. Condor 89:668-70.

U.S. Fish and Wildlife Service (USFWS). 6 July 1987. Proposed determination of endangered status for two long-nosed bats. Federal Register 52:25271-25275.

Santa Fe National Forest. 1987. Environmental Impact Statement, Santa Fe National Forest, Santa Fe Watershed Research Natural Area. US Forest Service, 3 p.

Allen, A. W. 1987. Habitat suitability index models: barred owl. U.S. Fish Wildl. Serv. Biol. Rep. 82(10.143). 17 pp.

Dunmire, W. and M. Toll. 1987. Establishment Record for Upper McKittrick Research Natural Area, Lincoln National Forest. US Forest Service, 127 p.

Garrett, J. M., and D. G. Barker. 1987. A Field Guide to Reptiles and Amphibians of Texas. Texas Monthly Press, Austin, Texas. 225 pp.

Scott Jr., N., C. Ramotnik, M. Altenbach, and B. Smith. 1987. Distribution and ecological requirements of endemic salamanders in relation to forestry management, summary of 1987 activities, Part 2: Santa Fe National Forest. U.S. Fish and Wildlife Service:

Lincoln National Forest. 1987. Map and note from Jeff to John Peterson with Northern Goshawk location and information.

Merritt, J. F. 1987. Guide to the mammals of Pennsylvania. University of Pittsburgh, Pittsburgh, PA.

Carlson, D. C. and E. M. White. 1987. Effects of prairie dogs on mound soils. Soil Sci. Soc. Am. J. 51:389-3.

Gwynn, J. V. 1987. Wildlife disease investigation. Pages 98-106 in Virginia Wildlife Investigations. Virginia Department of Game and Inland Fish., Richmond, Virginia.

Manuwal, D.A., M.H. Huff, M.R. Bauer, C.B. Chappell, and K. Hegstad. 1987. Summer birds of the upper subalpine zone of Mount Adams, Mount Rainier, and Mount St. Helens, Washington. Northwest Science 61:82-92.

Ryan, M.R., and R.B. Renken. 1987. Habitat use by breeding Willets in the northern Great Plains. Wilson Bull. 99(2):175-189.

White, D. H., and J. T. Seginak. 1987. Cave gate designs for use in protecting endangered bats. Wildlife Society Bull. 15:445-449.

Hubbard, J.P. 1987. The status of the Willow flycatcher in New Mexico. Endangered Species Program, NM Dept. of Game and Fish. 29pp.

Gennaro, A.L. 1987. Breeding of an urban population of Mississippi kites in Clovis, NM. Report to Nongame Program, NM Dept. of Game and Fish.

U.S. Fish and Wildlife Service (USFWS). 1987. Migratory Nongame Birds of Management Concern in the United States: The 1987 List. Office of Migratory Bird Management, U.S. Fish and Wildlife Service, Washington, D.C. 63 pp.

Brett, J. 1987. Northeast region report. Eyas 10:18-22.

Guillory, H. D. 1987. Cavity competition and suspected predation on Prothonotary Warberls by Peromyscus spp. Journal of Field Ornithology 58:425-7.

Litvaitus, J. A., J. T. Major, and J. A. Sherburne. 1987. Influence of season and human-induced mortality on spatial organization of bobcats (FELIS RUFUS) in Maine. J. Mamm. 68:100-106.

Olson-Edge, S.L., and W.D. Edge. 1987. Density and distribution of the Mountain Plover on the Charles M. Russell National Wildlife Refuge. Prairie Naturalist 19:233-238.

Seutin, G. 1987. Female song in Willow flycatchers (EMPIDONAX TRAILLII). Auk 104:329-330.

U.S. Fish and Wildlife Service (USFWS). 3 June 1987. Determination of endangered status for the Mount Graham red squirrel. Federal Register 52:20994-20999.

Abts, M. L. 1987. Environment and variation in life history traits of the chuckwalla, Sauromalus obesus. Ecological Monographs 57:215-232.

Clark, T. W., et al. 1987. Martes americana. Am. Soc. Mamm., Mammalian Species 289:1-8.

Fuller, M. R., and J. A. Mosher. 1987. Raptor survey techniques. Pages 37-65 in B. A. Giron Pendleton, et al., eds. Raptor management techniques manual. National Wildlife Federation, Washington, D.C.