Shy, E. 1983. The relation of geographical variation in song to habitat characteristics and body size in North American tanagers (Thraupinae: Piranga). Behav. Ecol. Sociobiol. 12:71-6.

Forshaw, J. M., and W. T. Cooper. 1983. Kingfishers and related birds. Vol. 1. Alcedinidae, Ceryle to Cittura. Landsdowne Editions, Sydney.

Taylor, D.W. 1983 (?). New species of molluscs from New Mexico. Report to New Mexico Department of Game and Fish.

Penak, B.L. 1983. Status report on the Cooper's Hawk ACCIPITER COOPERII. Committee on the Status of Endangered Wildlife in Canada (COSEWIC). 69 pp.

Bick, G.H. 1983. Odonata at risk in conterminous United States and Canada. Odonatologica 12(3):209-226.

Frost, D. 1983. Past occurrence of ACRIS CREPITANS (Hylidae) in Arizona. Southwestern Naturalist 28:105.

American Ornithologists' Union (AOU) . 1983. Check-list of North American Birds. 6 Ed. Allen Press, Lawrence. 877 pp.

Krekorian, C. O'Neil. 1983. Population density of the desert iguana, Dipsosaurus dorsalis (Reptilia: Iguanidae), in southern California. Copeia 1983:268-271.

Safina, C., and J. Burger. 1983. Effects of human disturbance on reproductive success in the black skimmer. Condor 85:164-171.

Crawford, R. L., S. L. Olson, and W. K. Taylor. 1983. Winter distribution of subspecies of clapper rails (RALLUS LONGIROSTRIS) in Florida with evidence for long-distance andoverland movements. Auk 100:198-200.

Jackson, J. A. 1983. Nesting phenology, nest site selection, and reproductive success of black and turkey vultures. Pages 245-270 in Wilbur, S. R., and J. A. Jackson,eds. Vulture biology and management. Univ. Calif. Press.

Stromberg, M. R., et al. 1983. Black-footed ferret prey requirements: An energy balance estimate. Journal of Wildlife Management 47(1):67-73.

P84SIV01NMUS, Legacy reference. Physical copy not yet located. - EO Table

Brittingham, M.C., and S.A. Temple. 1983. Have cowbirds caused forest songbirds to decline? BioScience 33:31-35.

Frederick, R. B., and R. R. Johnson. 1983. Ross' goose increasing in central North America. Condor 85:257-258.

Lam, T. H. 1983. Environmental influences on gonadal activity in fish. Pages 65-116 in W. S. Hoar, D. J. Randall, and E. M. Donaldson (editors). Fish Physiology, Vol. 9B. Academic Press, New York, New York.

Shelton, P. C., and R. O. Peterson. 1983. Beaver, wolf and moose interactions in Isle Royale National Park, U.S.A. Acta Zool. Fenn. 174:265-266.

Zimmerman, J.L. 1983. Cowbird parasitism of Dickcissels in different habitats and at different nest densities. Wilson Bulletin 95:7-22.

Arnett, Jr., Ross H., ed. 1983. Checklist of the Beetles of North and Central America and the West Indies. Flora and Fauna Publications, Gainesville, Florida. 24 P. (Pertains to all subsequent fasicle updates as well).

van Zyll de Jong, C.G. 1983. Handbook of Canadian mammals. 1. Marsupials and insectivores. National Museum of Natural Sciences, National Museums of Canada, Ottawa, Canada. 210 pp.

Dixon, K. R., J. A. Chapman, G. R. Willner, D. E. Wilson, and W. Lopez-Forment. 1983. The New World jackrabbits and hares (genus Lepus). 2. Numeric taxonomic analysis. Acta Zoologica Fennica 174:53-56.

New Mexico Natural Heritage Plant Protection Advisory Committee. 1983. A handbook of rare and endmic plants of New Mexico. Univ. of New Mexico Press, Albuquerque.

McLandress, M. R. 1983. Temporal changes in habitat selection and nest spacing in a colony of Ross' and lesser snow geese. Auk 100: 335-343.

Smith, W. P. 1983. Cooperative harassment of a pileated woodpecker by juvenile sharp-shinned hawks. Murrelet 64:97-8.

Heaney, L. R., and R. M. Timm. 1983. Relationships of pocket gophers of the genus Geomys from the central and northern Great Plains. Univ. Kansas Mus. Nat. Hist. Misc. Pub. 74. 59 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.

Pierson, E. C. 1983. Black terns nesting in Maine. Unpubl. report, Maine Critical Areas Program, Augusta, Maine. 21 pp.

Bogan, M.A. and P. Mehlhop 1983. Systematic relationships of gray wolves (Canis lupus) in southwestern North America. Occasional papers the Museum of Southwestern Biology. Num. 1:1-21. (17 June 1983)

Gochfeld, M. 1983. The roseate tern: world distribution and status of a threatened species. Biological Conservation 25(2):103-125.

Lanning, D. V., and J. T. Shiflett. 1983. Nesting ecology of thick-billed parrots. Condor 85:66-73.

Savage, M. J. and K. Vermeulen. 1983. Microclimate modification of tall moist grasslands of Natal by spring burning. Journal of Range Mangement 36:172-?.

Curtis, P. D., C. E. Braun, and R. A. Ryder. 1983. Wing markers: visibility, wear, and effects on survival of band-tailed pigeons. Journal of Field Ornithology 54:381-386.

King, C.M. 1983. Mustela erminea. Am. Soc. Mamm., Mammalian Species No. 195. 8 pp.

Taylor, W.K., R.L. Crawford, M. Kershner, and S. Gravel. 1983. House Wren migration compared with other wrens: an emphasis on Florida. Journal of Field Ornithology 54:17-24.

Frost, D. R. 1983. Sonora semiannulata. Catalogue of American Amphibians and Reptiles 333.1-333.4.

Linden, H. and M. Wikman. 1983. Goshawk predation on tetraonids: availability of prey and diet of the predator in the breeding season. Journal of Animal Ecology 52:953-968.

Stevenson, H. M., et al. 1983. Notes on common and Antillean nighthawks of the Florida Keys. Auk 100:983-988.

Baker, R. H. 1983. Michigan mammals. Michigan State University Press. 642 pp.

Jones, J. K., Jr., D. M. Armstrong, R. S. Hoffmann, and C. Jones. 1983. Mammals of the Northern Great Plains. University of Nebraska Press, Lincoln, Nebraska.

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

Duggins, C. F., Jr., A. A. Karlin, and K. G. Relyea. 1983. Electrophoretic variation in the killifish genus Luciana. Copeia 1983:564-570.

Nussbaum, R.A., E.D. Brodie, Jr., and R.M. Storm. 1983. Amphibians and Reptiles of the Pacific Northwest. University Press of Idaho, Moscow, Idaho. 332 pp.

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

Johnson, T.B. 1983. Status Report: Crotalus willardi willardi (Meek 1905). Unpubl. Report to Office of Endangered Species, USFWS.

Mendenhall, V. M., E. E. Klaas, and M. A. R. McLane. 1983. Breeding success of barn owls fed low levels of DDE and Dieldrin. Archives of Envirnonmental Contamination and Toxicology 12:235-40.

Stacey, P. B., R. D. Arrigo, T. C. Edwards, and N. Joste. 1983. Northwestern extension of the breeding range of the elf owl in New Mexico. Southwestern Naturalist 28:99-100.

Janzen, D.H. ed. 1983. Costa Rican natural history. Univ. Chicago Press, 816 pp.

Rowell, C.M., Jr. 1983. Status report [on Amsonia tharpii]. Report prepared for the U.S. Fish and Wildlife Service, Albuquerque, New Mexico.

Brown, D. E. 1983. On the status of the jaguar in the Southwest. Southwestern Naturalist 28:459-460.

Leonard, 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.

Shirvell, C. S. and R. G. Dungey. 1983. Microhabitats chosen by brown trout for feeding and spawning in rivers. Trans. Am. Fish. Soc. 112(3): 355-367.

Ambuel, B., and S. A. Temple. 1983. Area-dependent changes in the bird communities and vegetation of southern Wisconsin forests. Ecology 64:1057-68.

Czaplewski, N.J. 1983. Idionycteris phyllotis. Mammalian Species 208:1-4.

Kress, S. W., E. H. Weinstein, and I. C. T. Nisbet. 1983. The status of tern populations in the northeastern United States and adjacent Canada. Colonial Waterbirds 6:84-106.

Telfair, R.C. II. 1983. The cattle egret: a Texas focus and world view. Texas Agricultural Experiment Station. (College Station).

Garrett, M. G. and W. L. Franklin. 1983. Diethylstilbestrol as a temporary chemosterilant to control black-tailed prairie dog populations. Journal of Range Management 36:753-6.

Linzey, D. W. 1983. Status and distribution of the northern water shrew (SOREX PALUSTRIS) and two subspecies of northern flying squirrel (GLAUCOMYS SABRINUS COLORATUS and GLAUCOMYS SABRINUS FUSCUS). U.S. Fish and Wildlife Service Contract No. 14-16-005-79

Strayer, D. 1983. The effects of surface geology and stream size on freshwater mussel (Bivalvia, Unionidae) distribution in southeastern Michigan, U.S.A. Freshwater Biology 13:253-264.

Cooper, E. L. 1983. Fishes of Pennsylvania and the northeastern United States. Pennsylvania State University Press, University Park. 243 pp.

Miller, J. E. 1983. Beavers. Prevention and control of wildlife damage. Cooperative Extension Service, Institute of Agricultural and Natural Resources, University of Nebraska, Lincoln.