Wilbur, S. R., and J. A. Jackson, eds. 1983. Vulture biology and management. Univ. California Press, Berkeley. xxii + 550 pp.

Blais, J. R. 1983. Trends in the frequency, extent, and severity of spruce budworm outbreaks in eastern Canada. Canadian Journal of Forest Research 13:539-547.

Clapp, R.B., M.K. Klimkiewicz, and A.G. Futcher. 1983. Longevity records of North American birds: Columbidae through Paridae. Journal of Field Ornithology 54:123-137.

Blake, J. G. 1983. Ecological relationships of breeding birds in isolated forest patches in east-central Illinois. University of Illinois. Unpublished Ph.D. dissertation.

Layne, J. N. 1983. Productivity of sandhill cranes in south central Florida. J. Wildl. Manage. 47:178-185.

Scholes, R. 1983. Mexican chickadee. New Mexico Ornithological Society field notes. R.A. Goodman (ed) vol 22 (1):8, 1 Dec 1981 - 28 Feb 1983.

Wilbur, S. R. 1983. The status of vultures in the western hemisphere. Pages 113-123 in Wilbur, S. R., and J. A. Jackson, eds. Vulture biology and management. Univ. California Press, Berkeley.

Fletcher, R. 1983. Lincoln National Forest trip report, September 26-27, 1983.

Waring, G. T. 1983. Horse behavior: the behavioral traits and adaptations of domestic and wild horses, including ponies. Park Ridge: Noyes. 292 pp.

WSMR Game Wardens, Unit 9. 1983. Ground observation monthly report, April 1983 of Bald Eagle. White Sands Missile Range, WSMR-NM-88002 Station. . 2 p.

Sousa, P. and W. McDonal. 1983. Habitat Suitability Index Models: Baird's Sparrow. 18 p.

Cade, T. J. and P. R. Dague. 1983. Elf Owls. The Peregrine Fund Newsletter, number 11. Cornell University Laboratory of Ornithology, Ithaca, New York.

Case, F. W. 1983. The genus Spiranthes in Michigan. The Michigan Botanist 22:79-92.

Gutierrez, R. J., R. M. Zink, and S. Y. Yang. 1983. Genic variation, systematic, and biogeographic relationships of some Galliform birds. Auk 100:33-47.

Morris, M. M. J., and R. E. Lemon. 1983. Characteristics of vegetation and topography near red-shouldered hawk nests in southwestern Quebec. J. Wildlife Manage. 47:138-145.

Stearns, S. C. 1983c. The evolution of life-history traits in mosquito fish since their introduction to Hawaii in 1905: rates of evolution, heritabilities, and developmental plasticity. American Zoologist 23:65-75.

Chapman, J. A., K. R. Dixon, W. Lopez-Forment, and D. E. Wilson. 1983. The New World jackrabbits and hares (genus LEPUS).--1. Taxonomic history and population status. Acta Zoologica Fennica 174:49-51.

Hatch, S.L., and D.A. Bearden. 1983. Stipa curvifolia (Poaceae) - studies on a rare taxon. SIDA 10(2):184-187.

Ehrenfeld, J. G. 1983. The effects of changes in land-use on swamps of the New Jersey Pine Barrens. Biol. Cons. 25:353-75.

Hubbard, J.P. and C.S. Thaeler Jr. 1983. Notes on voles (Microtus family Cricetidae) in New Mexico. Occas Papers del Mus Nat Hist 28:1-8.

Otto, J. E. 1983. Breeding ecology of the pied-billed grebe (PODILYMBUS PODICEPS [Linneaus]) on Rush Lake, Winnebago County, Wisconsin. M.S. thesis, University of Wisconsin, Oshkosh, Wisconsin.

Telfair, R. C. 1983. The cattle egret, a Texas focus and world view. Texas A & M Univ. Press. 144 pp.

Bosakowski, T. 1983. Density and roosting habits of northern harriers wintering in the hackensack Meadowlands, New Jersey. Records New Jersey Birds 9:50-4.

Cole, C. J., and L. M. Hardy. 1983. Tantilla atriceps. Cat. Am. Amph. Rep. 317.1-317.2.

Dale, B. C. 1983. Habitat relationships of seven species of passerine birds at Last Mountain Lake, Saskatchewan. M.S. Thesis. University of Regina, Saskatchewan. 119 pp.

National Audubon Society. 1983. Eighty-third Christmas Bird Count. Audubon Field Notes 37:69-408.

Leomard, M.L. and M.B. Fenton. 1983. Habitat use by spotted bats (Euderma maculatum, Chiroptera:Vespertilionidae): roosting and foraging behavior. Can. J. Zool. 61:1487-1491.

Scott, D. M., and C. D. Ankney. 1983. The laying cycle of brown-headed cowbirds: passerine chickens? Auk 100:583-592.

Zuniga, G.E., V. H. Argandona, H. M. Niemeyer, and L. J. Corcuera. 1983. Hyroxamic content in wild and cultivated Gramineae. Phytochemistry 22(12):2665-2668.

Hubbs, C. et al. 1983. Recovery plan for Pecos gambusia (Gambusia nobilis). Unpub report for US Fish and Wildlife Service by the Rio Grande Fishes Recovery Team. 41 pp.

Allen, A. W. 1983. Habitat suitability index models: beaver. U.S. Fish and Wildlife Service, FWS/OBS-82/10.30, revised. 20 pp.

Weed Science Society of America. 1983. Herbicide handbook.

Stefferud, J. (1983) Unpublished letter to Forest Supervisor, Carson NF. Subject: Nutritas Sales- Tres Piedras R.D. Carson Supervisor's Office, Carson National Forest, USFS. 5 p.

Peterson, A. T. 1983. Techniques for aging and sexing upland sandpipers (BARTRAMIA LONGICAUDA). Abstr. Wader Study Group 39:60.

Castrale, J.S. 1983. Selection of song perches by sagebrush-grassland birds. Wilson Bulletin 95:647-655.

Hall, G.A. 1983. West Virginia birds: distribution and ecology. Spec. Publ. Carnegie Mus. Nat. Hist. No. 7, Pittsburgh. 180 pp.

Morrison, M.L., and C. Meslow. 1983. Bird community structure in early-growth clearcuts in western Oregon. American Midland Naturalist 110:129-137.

Swenson, J. E., S. J. Knapp, P. R. Martin, and T. C. Hinz. 1983. Reliability of aerial cache surveys to monitor beaver population trends on prairie rivers in Montana. Journal of Wildlife Management 47:697-703.

Cole, C. J. 1983. Specific status of the North American fence lizards, Sceloporus undulatus and Sceloporus occidentalis, with comments on chromosome variation. Am. Mus. Novitates (2768):1-13.

Heimburger, M.D., D. Euler, and J. Barr. 1983. The impact of cottage development on common loon reproductive success in central Ontario. Wilson Bulletin 95:431-439.

Arbuckle, J. 1983. [Least tern and piping plover....]. Maine Audubon Society. 35 pp.

Estes, R. D., ed. 1983. Bibliography of the eastern brook trout, Salvelinus fontinalis. Southeastern Division, American Fisheries Society, Cookeville, Tennessee. 33 pp.

Johnson, N. K., and R. M. Zink. 1983. Speciation in sapsuckers (SPHYRAPICUS): I. Genetic differentiation. Auk 100:871-884.

Page, L. M. 1983b. Identification of the percids, Boleosoma phlox Cope and Ioa vigil Hay. Copeia 1983: 1082-1083.

Wilson, B. 1983. Floodplain tall grass prairie. American Birds 37:80.

Braun, B. M., and G. L. Hunt, Jr. 1983. Brood reduction inblack-legged kittiwakes. Auk 100:469-476.

Coppock, D.L., J.K. Detling, J.E. Ellis and M.I. Dyer. 1983. Plant-herbivore interactions in North American mixed-grass prairie. Oecologia 56:1-9

Elenowitz, A. S. 1983. Habitat use and population dynamics of transplanted Desert bighorn sheep in the Peloncillo Mountains, New Mexico. New Mexico State University.Master's Thesis. .

Becker, G. C. 1983. Fishes of Wisconsin. University of Wisconsin Press, Madison. 1,052 pp.

Colorado Division of Natural Resources (CDNR). 1983. Shrub thicket establishment in Colorado's high plains. Game information leaflet no. 108. 4 pp.

MacCulloch, R. D., and D. M. Secoy. 1983. Movement in a river population of Chrysemys picta belli in southern Saskatchewan. Journal of Herpetology 17:283-285.

Seal, U. S., and E. D. Plotka. 1983. Age-specific pregnancy rates in feral horses. J. Wildl. Manage. 47:422-429.

Stenzel, J. R. 1983. Ecology of breeding yellow rails at Seney National Wildlife Refuge. M.S. thesis, Ohio State University, Columbus, OH.

Johnson, T.H. (1983) Falco Peregrinus in Northern New Mexico- 1983. U.S. Forest Service Contracts 43-8379-2-559 and 43-83A7-3-22. Regional Office, USFS. 8 p.

Avery, E. L. 1983. A bibliography of beaver, trout, and wildlife, and forest relationships. Wisconsin Department of Natural Resources Technical Bulletin No. 137. 23 pp.

Sousa, P.J. 1983. Habitat suitability index models: Field Sparrow. FWS/OBS-82/10.62. U.S. Fish and Wildlife Service. 14 pp.

Cink, C., and P. Sepahi. 1983. Floodplain tall grass prairie. American Birds 37:83.

Hammond, P. C. and D. V. McCorkle. 1983. The decline and extinction of Speyeria populations resulting from human environmental disturbances (Nymphalidae: Argynninae). Journal of Research on the Lepidoptera 22(4):217-224.

Moss, R. E., J. W. Scanlan, and C. S. Anderson. 1983. Observations on the natural history of the blue sucker (Cycleptus elongatus Le Sueur) in the Neosho River. American Midland Naturalist. 109:15-22.

Tinkle, D. W., and A. E. Dunham. 1983. Demography of the tree lizard, Urosaurus ornatus, in central Arizona. Copeia 1983:585-598.