Goldwasser, S. 1981. Habitat requirements of the Least Bell's Vireo. Final Rep., California Dept. of Fish and Game, Sacramento, CA.

Byrd, G. V., and C. F. Zeillemaker. 1981. Ecology of nesting Hawaiian common gallinules at Hanalei, Hawaii. W. Birds 12:105-116.

Kerlinger, P., and C. Doremus. 1981. Habitat disturbance and the decline of dominant avian species in pine barrens of the northeastern United States. American Birds 35:16-20.

Veselack, M. S. and J. J. Nisbet. 1981. The distribution and uses of Arundo donax (abstract). Proc. Indiana Acad. Sci. 90:92.

Alvo, R. 1981. Marsh nesting of common loons (GAVIA IMMER). Can. Field Nat. 95:357.

Singer, F. J., et al. 1981. Home ranges, movements, and habitat use of European wild boar in Tennessee. J. Wildl. Manage. 45:343-353.

Dickson, J. G., and C. A. Segelquist. 1981. Breeding bird populations in pine and pine-hardwood forests in Texas. J. Wildlife Manage. 43(2):549-555.

Barrows, C.W. 1981. Roost selection by spotted owls: an adaptation to heat stress. Condor 83:302-309.

Smith, J.N.M. 1981. Cowbird parasitism, host fitness and age of the host female in an island Song Sparrow population. Condor 83:152-161.

Hillis, D. M. 1981. Premating isolating mechanisms among three species of the Rana pipiens complex in Texas and Oklahoma. Copeia 1981:312-319.

Proctor, N. 1981. The black rail: mystery bird of the marsh. Connecticut Warbler 1(2):15-16.

Ferris, C.D. and F.M. Brown (eds). 1981. Butterflies of the Rocky Mountains. University of Oklahoma Press. Norman. 442 pp.

Larrison, E.J. and D.R. Johnson. 1981. Mammals of Idaho. The University of Idaho Press, Moscow.

Cronquist, A. 1981. An integrated system of classification of flowering plants. Columbia Univ. Press, New York. 1262 pp.

Peterson, R.L. 1981. North American moose. 280 pp.

Carlton, K. 1981. Jornada del Muerto Lava Cave System, a report. BLM, Socorro District. 25 September 1981. 24 pp.

Spellenberg, R. Ward, D. 1981. Status Report on Silene Wrightii. Department of Biology, New Mexico State University, Las Cruces, New Mexico. USFS

Cannon, R. W., and F. L. Knopf. 1981. Lek numbers as a trend index to prairie grouse populations. Journal of Wildlife Management 45:776-778.

Marshall, J. T., and R. D. Sage. 1981. Taxonomy of the house mouse. Symp. Zool. Soc. London 47:15-25.

Wiens, J.A., and J.T. Rotenberry. 1981. Habitat associations and community structure of birds in shrubsteppe environments. Ecological Monographs 51:21-41.

Anderson, S. H., and C. S. Robbins. 1981. Habitat size and bird community management. Transatlantic North American Wildlife and Natural Resources Conference 46:511-20.

Smith, D.G., J.R. Murphy, and N.D. Woffinden. 1981. Relationships between jackrabbit abundance and Ferruginous Hawk reproduction. Condor 83:52-56.

Bednarz, J. C., and J. J. Dinsmore. 1981. Status, habitat use and management of red-shouldered hawks in Iowa. J. Wildlife Manage. 45:236-241.

Snyder, D. E. 1981. Contributions to a guide to the cypriniform fish larvae of the upper Colorado River system in Colorado. United States Bureau of Land Management, Biological Sciences Series 3, Denver, Colorado. 81 pp.

Aniskowicz, B. T. 1981. Behavior of a male least bittern IXOBRYCHUS EXILIS after loss of mate. Wilson Bulletin 93:395-397.

Houston, C. S. 1981. An assessment of Walter Raine and his Saskatchewan records. Bule Jay 39:168-81.

Rundle, W.D., and L.F. Fredrickson. 1981. Managing seasonally flooded impoundments for migrant rails and shorebirds. Wild. Soc. Bull. 9:80-87.

Maser, C., B. R. Mate, J. F. Franklin, and C. T. Dyrness. 1981. Natural history of Oregon coast mammals. Pacific Northwest Forest and Range Expt. Sta., USDA, Forest Service, Gen Tech. Rep. PNW-133:1-496.

Crum, H.A., and L.E. Anderson. 1981. Mosses of eastern North America. 2 Volumes. Columbia Univ. Press, New York. 1328 pp.

Pyle, R. M. 1981. The Audubon Society Field Guide to North American Butterflies. Alfred A. Knopf, New York, New York. 916 pp. + color plates.

Christenson, B. L.. 1981. Reproductive ecology of and response to disturbance by common loons in Maine. University of Maine, Orono, Maine. M.S. thesis.

WESTEC Service, Inc. 1981. 810400. Status Report submitted to the Office of Endangered Species.

Confer, J. L., and K. Knapp. 1981. Golden-winged warblers and blue-winged warblers: the relative success of a habitat specialist and a habitat generalist. Auk 98:108-114.

Marking, L. L. and T. D. Bills. 1981. Sensitivity of four species of carp to selected fish toxicants. North American Journal of Fisheries Management. 1:51-4.

Zammuto, R. M. and E. C. Franks. 1981. Environmental effects on roosting behavior of Chimney Swifts. Wilson Bulletin 93:77-84.

Bibby, C. J. 1981. Wintering bitterns in Britain. British Birds 74:1-10.

Keran, D. 1981. The incidence of man-caused and natural mortalities to raptors. Raptor Research 15:108-12.

Suter, G. W., II and J. L. Joness. 1981. Criteria for Golden Eagle, Ferruginous Hawk, and Prairie Falcon nest site protection. Raptor Res. 15:12-18.

Best, L.B., D.F. Stauffer, A.R. Geier, K.L. Varland, J.P. Vogler, R.B. Dahlgren, and R.Q. Landers. 1981. Effects of habitat alterations on riparian plant and animal communities in Iowa. U.S. Department of the Interior, Fish and Wildlife Service, FWS/OBS-8

Beedy, E.C. 1981. Bird communities and forest structure in the Sierra Nevada of California. Condor 83:97-105.

Thompson, C.F., and B.M. Gottfried. 1981. Nest discovery and selection by Brown-headed Cowbirds. Condor 83:268-269.

Chernoff, B., J. V. Conner, and C. F. Bryan. 1981. Systematics of the Menidia beryllina complex (Pisces: Atherinidae) from the Gulf of Mexico and its tributaries. Copeia 1981:319-336.

Hurlbert, S. H., and M. S. Mulla. 1981. Impacts of mosquitofish (Gambusia affinis) predation on plankton communities. Hydrobiologica 83:125-151.

Savaloja, T. 1981. Yellow Rail. Birding 13(3):80-85.

McDonald, J.N. 1981. North American Bison -- their classification and evolution. 316 pp.

Dressler, R. 1981. The Orchids: Natural History and Classification. Harvard Univ. Press, Cambridge, MA. 332 pp.

Broschart, M.R. (1981) Nesting Study of a Peregrine Falcon Pair in the Carson National Forest, New Mexico.

Wallmo, O.C. 1981. The mule and black-tailed deer of North America. 605 pp.

Dinsmore, J. J. 1981. Piping plovers - a synthesis of the literature and an annotated bibliography. Unpublished report. 28 pp.

Worthington, R.D. 1981. Status report, Oenothera organensis, Organ Mountains Primrose, Fish and Wildlife Service, Albuquerque, NM. 9 p.

Koppinger, D.G. 1981. U.S. Geological Survey topographic map containing generalized locations of Rumex orthoneurus throughout the Coronado National Forest. Arizona Natural Heritage Program. 8 p.

Crawford, H. S., R. G. Hooper, and R. W. Titterington. 1981. Songbird population response to silvicultural practices in central Appalachian hardwoods. Journal of Wildlife Management 45:680-92.

Massey, B. W. 1981. A least tern makes a right turn. Nat. Hist. 90:61-72.

Blem, C.R. 1981. Heterodon platyrhinos. Catalogue of American Amphibians and Reptiles. SSAR. NO. 282:1-2.

Kimmel, V. L., and L. H. Fredrickson. 1981. Nesting ecology of the red-shouldered hawk in southeastern missouri. Trans. Missouri Acad. Sci. 15:21-27.

Whitcomb, R. F., C. S. Robbins, J. F. Lynch, B. L. Whitcomb, M. K. Klimciewicz, and D. Bystrak. 1981. Effects of forest fragmentation on avifauna of the eastern deciduous forest. Pages 125-206 in R. L. Burgess, and B. L. Sharpe (editors). Forest island dy

Hay, M. A., and G. R. Lingle. 1981. The birds of Mormon Island Crane Meadows, Nebraska. Report to The Nature Conservancy, June 1981. 206 pp.

Behrstock, R. A. 1981. Prey-induced mortality of a pied-billed grebe. Western Birds 12:183-4.

Toweill, D. E., and J. G. Teer. 1981. Home range and den habits of Texas ringtails (Bassariscus astutus flavus). Pages 1103-1120 IN Chapman, J. A., and Pursley, D. (editors). Worldwide Furbearer Conference Proceedings, Frostburg, Maryland.

Cole, G.A. 1981. Gammarus desperatus, a new species from New Mexico (Crustacea:Amphipoda). Hydrobiologia, 76:27-32.