Scott, J. A., and S. A. Mattoon. 1981. Early stages of Speyeria nokomis (Nymphalidae). Journal of Research on the Lepidoptera 20:12-15.

Koppinger, D.G. 1981. Occurence map of Psoralea pentophylla. Arizona Natural Heritage Program. USFS.

Fitch, J.H., K.A. Shump, Jr., and A.U. Shump. 1981. Myotis velifer. Mammalian species 149:1-5.

O'Meara, T., J. Haufler, L. Stelter, and J. Nagy. 1981. Nongame wildlife responses to chaining of Pinyon-Juniper woodlands. Journal of Wildlife Management 45(2):381-389.

Facey, D.E. and G. Labar. 1981. Biology of American eels in Lake Champlain, Vermont. Transactions of the American Fisheries Society 110(3): 396-402.

King, B. 1981. The field identification of North American pipits. American Birds 35:778-88.

Williams, J. E., and G. R. Wilde. 1981. Taxonomic status and morphology of isolated populations of the White River springfish, Crenichthys baileyi (Cyprinodontidae). Southwestern Naturalist 25(4):485-503.

McCabe, T. L. 1981. The Dakota skipper, Hesperia dacotae (Skinner): range and biology, with special reference to North Dakota. Journal of the Lepidopterists' Society 35(3): 179-193.

Wallis, C.A., and C.R. Wershler. 1981. Status and breeding of Mountain Plovers (Charadrius montanus) in Canada. Canadian Field-Naturalist 95:133-136.

Trautman, M. B. 1981. The fishes of Ohio. Second edition. Ohio State University Press, Columbus, Ohio. 782 pp.

Titus, J. R., and L. W. VanDruff. 1981. Response of the common loon to recreational pressure in the Boundary Waters Canoe Area, northeastern Minnesota. Wildl. Monogr. No. 79:1-59.

Seegmiller, R. F., and R. D. Ohmart. 1981. Ecological relationships of feral burros and desert bighorn sheep. Wildlife Monographs No. 78:1-58.

Smith, E. L. 1981. Effects of canoeing on common loon production and survival on the Kenai National Wildlife Refuge, Alaska. Colorado State University, Fort Collins, Colorado. M.S. thesis.

Worthington, R. 1981. Noteworthy Collection of Salvia summa. Department of Biological Sciences at the University of Texas, El Paso. USFS.

Milburn, T. 1981. STATUS & DISTRIBUTION OF THE LOGGERHEAD SHRIKE, LANIUS LUDOVICIANUS IN THE NORTHEASTERN U.S. UNPUB- LISHED REPORT SUBMITTED TO THE USDI/FWS OFFICE OF ENDANGERED SPECIES. 77 PP.

Hulse, A. C. 1981. Ecology and reproduction of the parthenogenetic lizard Cnemidophorus uniparens (Teiidae). Ann. Carnegie Mus. Nat. Hist. 50:353-369.

Shugart, G. W., M. A. Fitch, and V. M. Shugart. 1981. Minimizing investigator disturbance in observational studiesof colonial birds: access to blind through tunnels. WilsonBull. 93:565-569.

Green, B.H., and H.D. Smith. 1981. Habitat utilization by sage sparrows in mixed desert shrub community. Abstract only. Encyclia 58:159.

Payne, N. F. 1981. Accuracy of aerial censusing for beaver colonies in Newfoundland. Journal of Wildlife Management 45:1014-1016.

Frest, T.J. and R.S. Rhodes, II. 1981. Oreohelix strigosa cooperi (Binney) in the Midwest Pleistocene. The Nautilus, 95: 47-55.

Lawson, R., and H. C. Dessauer. 1981. Electrophoretic evaluation of the colubrid genus ELAPHE Fitzinger. Isozyme Bull. 14:83.

Zammuto, R. M., E. C. Franks, and C. R. Preston. 1981. Factors associated with the interval between feeding visits in brood-rearing Chimney Swifts. Journal of Field Ornithology 52:134-139.

Merritt, J.F. 1981. Clethrionomys gapperi. Am. Soc. Mamm.,Mammalian Species No. 146. 9 pp.

Wentworth, T.R. 1981. Vegetation on limestone and granite in the Mule Mtn, Arizona. Ecology. 62(2):469-482.

Vogt, R. C. 1981c. Natural history of amphibians and reptiles of Wisconsin. Milwaukee Public Museum. 205 pp.

Allen, O.N. and E.K. Allen. 1981. The Leguminosae: A source book of characteristics, uses and nodulation. The Univ. of Wisconsin Press, Madison, WI.

Whittemore, M. 1981. Chimney swifts and their relatives. Nature Books. 176 pp.

Sepik, G. F., R. B. Owen, Jr., and M. W. Coulter. 1981. A landowner's guide to woodcock management in the Northeast. University of Maine Agricultural Experiment Station Misc. Rep. 253. 23 pp.

Spellenberg, R. 1981.Survey for threatened or endangered species on the Bitsi-Star Lake area, northwestern NM. BLM. 64p.

Worthington, R. 1981. Status report on Silene plankii. Department of Biological Sciences, University of Texas at El Paso, El Paso, Texas.

Mossman, M. 1981. The 1981 black tern survey. Unpubl. report, Office of Endangered and Nongame Species, Wisconsin Dept. of Natural Resources, Madison, WI. 9 pp.

Apfelbaum, S., and A. Haney. 1981. Bird populations before and after wild fire in a Great Lakes USA pine forest. Condor 83(4):347-354.

Johnson, T.B. and R.B. Spicer. 1981. Mountain plovers on the New Mexico-Arizona border. Continental Birdlife 2(3): 69-73. June 1981.

Titus, K., and J. A. Mosher. 1981. Nest site habitat selection by woodland hawks in the central Appalachians. Auk 98:270-281.

Hammerquist-Wilson, M. N. and J. A. Crawford. 1981. Response of bobwhite to cover changes within three grazing systems. Jounal of Range Management 34:213-215.

Phillips, D. P., W. E. Childers, and G. S. Whitt. 1981. Management implications for different genetic stocks of largemouth bass (Micropterus salmoides) in the United States. Canadian Journal of Fisheries and Aquatic Sciences 38:1715-1723.

Freedman, B., C. Beauchamp, I. A. McLaren, and S. I. Tingley. 1981. Forestry management practices and populations of breeding birds in a hardwood forest in Nova Scotia. Canadian Field-Naturalist 95:307-311.

Matteson, S. W., and J. O. Riley. 1981. Distribution and nesting success of Zone-tailed Hawks in west Texas. Wilson Bulletin 107:719-723.

Day, J. C. U. 1981. Status of bitterns in Europe since 1976. British Birds. 74:10-6.

Morrison, M.L. 1981b. The structure of western warbler assemblages: analysis of foraging behavior and habitat selection in Oregon. Auk 98:578-588.

Cole, C. J., and L. M. Hardy. 1981. Systematics of North American colubrid snakes related to Tantilla planiceps (Blainville). Bull. Am. Mus. Nat. Hist. 171:199-284.

U.S. Fish and Wildlife Service (USFWS). 1981. Plymouth red-bellied turtle recovery plan. U.S. Fish and Wildlife Service, Region 5. 13 pp.

Worthington, R.D. 1981. Status report [on Silene plankii]. Report prepared for U.S. Fish & Wildlife Service, Albuquerque, New Mexico.

Ashton, R. E., Jr., and P. S. Ashton. 1981. Handbook of reptiles and amphibians of Florida. Part One: The Snakes. Windward Publishing Company, Miami, Florida. 176 pp.

Sedgwick, J. A. 1981. Breeding bird and small mammal habitat relationships in northwestern Colorado. Ph.D. Dissertation, Colorado State University. 139 pp.

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.

Hamman, R. L. 1981. Hybridization of three species of chub in a hatchery. Progressive Fish-Culturist 43:140-141.

Procter-Gray, E., and R. T. Holmes. 1981. Adaptive significance of delayed attainment of plumage in male American redstarts: tests of two hypotheses. Evolution 35:742-51.

Hall, G.A. 1981b. Fall migration patterns of wood warblers in the southern Appalachians, USA. Journal of Field Ornithology 52:43-49.

Maurer, B. A., L. B. McArthur, and R. C. Whitmore. 1981. Effects of logging on guild structure of a forest bird community in West Virginia. American Birds 35:11-13.

Dexter, R. W. 1981b. Chimney Swifts reuse ten-year-old nest. North American Bird Bander 6:136-137.

Moulton, M. P., J. R. Choate, S. J. Bissell, and R. A. Nicholson. 1981. Associations of small mammals on the central high plains of eastern Colorado. Southwestern Naturalist 26(1):53-57.

Hall, E. R. 1981a. The Mammals of North America, second edition. Vols. I & II. John Wiley & Sons, New York, New York. 1181 pp.

Craven, S. R. 1981. The Canada goose (BRANTA CANADENSIS)- an annotated bibliography. U. S. Fish & Wildl. Serv., Spec.Sci. Rep.-Wildl. No. 231. 66 pp.

Escherich, P. C. 1981. Social biology of the bushy-tailed woodrat, Neotoma cinerea. Univ. California Pub. Zool. 110: xiv + 132 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