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Monroe, B.L., Jr. 1968. A distributional survey of the birds of Honduras. Ornithological Monographs 7:1-458.

Ray, T. 1968. Naphthalene crystals as protection for nesting raptors. Hawk Chalk 7:52-4.

Brown, L. and D. Amadon. 1968. Eagles, hawks, and falcons of the world, Vol. 2. Country Life Books. London. 945 pp.

Whitworth, W. R., P. R. Berrien, and W. T. Keller. 1968. Freshwater fishes of Connecticut. State Geological and Natural History Survey Bulletin No.101. 134 pp.

Walkinshaw, L.H. 1968. Eastern Field Sparrow. Pages 1217-1235 in O.L. Austin, editor. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies. Dover Publications, Inc., New York, NY.

Smith, C. C. 1968. The adaptive nature of social organization in the genus of tree squirrels, Tamiasciurus. Ecological Monographs 38:31-63.

Brown, L. and D. Amadon. 1968. Eagles, Hawks, and Falcons of the World. McGraw-Hill, NY.

Bacon, E. J., Jr., W. H. Neill, Jr., and R. B. Kilambi. 1968. Temperature selection and heat resistance of the mosquitofish, Gambusia affinis. Proceedings of the Annual Conference of the Southeastern Association of Game and Fish Commissioners 22:411-416

Walkinshaw, L.H. 1968. Le Conte's Sparrow (PASSERHERBULUS CAUDACUTUS). Pages 765-776 in O.L. Austin, Jr., editor. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies. Part 2. United States National Museu

Thaeler, C.S. Jr. 1968. An analysis of the distribution of pocket gopher species in northeastern California (Genus THOMOMYS). University of California Publications in Zoology Vol. 86, University of California Press, Berkeley.

Smith, R.L. 1968. Grasshopper Sparrow. Pages 725-745 in O.L. Austin, Jr., editor. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies, Part 2. Dover Publications, Inc., New York, NY.

Reeves, H. M., A. D. Geis, and F. C. Kniffin. 1968. Mourning dove capture and banding. U.S. Fish and Wildl. Spec. Sci. Rep.--Wildl. (117):1-63.

Baumgarten, H.E. 1968. Lark Bunting. Pages 638-657 in O.L. Austin, Jr., editor. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies, part 2. Dover Publications, Inc., New York, NY.

Whitford, W.G. 1968. Physiological responses to temperature and dessication in the endemic New Mexico Plethodontids, Plethedon neomexicanus and Aneides hardii.

Campbell, H. 1968. Seasonal precipitation and scaled quail in New Mexico. Journal of Wildlife Management 32:641-644.

Baird, J. 1968. Savannah Sparrow (PASSERCULUS SANDWICHENSIS). Pages 675-698 in A.C. Bent, editor. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies, Part 2. Dover Publications, Inc., New York, NY.

Zweifel, R.G. 1968b. Rana muscosa. Catalogue of American Amphibians and Reptiles 65:1-2.

Cody, M.L. 1968. Interspecific territoriality among hummingbird species. Condor 70:270-271.

Brown, P. R. 1968. Residents of the Golden State. International Turtle and Tortoise Society Journal. 2(6):28-9.

Ligon, J.D. 1968. The biology of the elf owl, MICRATHENE WHITNEYI. Univ. Michigan Mus. Zool., Misc. Publ. No. 136.

Gloyd, L.K. 1968. The union of Argia fumipennis (Burmeister, 1839) with Argia violacea (Hagen, 1861) and the recognition of three subspecies (Odonata). Occasional papers of the Museum of Zoology, University of Michigan. 658:1-6.

Foerster, R.E. 1968. The sockeye salmon, Oncorhynchus nerka. Bulletin of the Fisheries Research Board of Canada 162 xv + 422 pp.

Munz, P.A. 1968. Supplement to a California flora. Univ. California Press. Berkeley. 224 pp.

Tyler, J.D. 1968. Distribution and vertebrate associates of the black-tailed prairie dog in Oklahoma. Ph.D. dissertation. University of Oklahoma, Norman.

Krause, H. 1968. McCown's Longspur. Pages 1564-1597 in O.L. Austin, Jr., editor. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies, part 3. Dover Publications, Inc., New York, NY.

Ficken, M. S., and R. W. Ficken. 1968. Territorial relationships of blue-winged warblers, golden-winged warblers, and their hybrids. Behaviour 28:149-181.

Orians, G.H., Christman. 1968. Behavior of redwinged, tri-colored, and yellow headed blackbirds. Berkeley. 301 pp.

Tyler, J. D. 1968. Distribution and vertebrate associates of the black-tailed prairie dog in Oklahoma. Ph.D dissertation, University of Oklahoma, Norman.

Edwards, P., and D. Stacy. 1968. The development of nestling curve-billed thrashers. Department of Ecology and Evolutionary Biology report, University of Arizona, Tucson.

Mead, R. A. 1968. Reproduction in western forms of the spotted skunk (genus SPILOGALE). J. Mamm. 49:373-390.

Gross, A.O. 1968. Dickcissel. Pages 158-191 in O.L. Austin, Jr., editor. Life histories of North American cardinals, grosbeaks, towhees, finches, sparrows, and allies, part 1. Dover Publications, Inc., New York, NY.

Arledge, J.G. and R. Boice. 1968. Economics of water intake in packrats (Neotoma albigula and Neotoma micropus). Abstract: Barren and wet habitats. Amer Zool 8(4): 751.

Packard, R. L. 1968. An ecological study of the fulvous harvest mouse in eastern Texas. American Midland Naturalist 79:68-88.

Leege, T. A. 1968. Natural movements of beavers in southeastern Idaho. Journal of Wildlife Management 32:973-976.

Gibbons, J. W. 1968c. Reproductive potential, activity and cycles in the painted turtle, Chrysemys picta. Ecology 49:399-409.

Baumgartner, A.M. 1968. Harris' Sparrow. Pages 1249-1273 in Life Histories of North American Cardinals, Grosbeaks, Buntings, Towhees, Finches, Sparrows, and Allies. A.C. Bent, editor. U.S. National Museum Bulletin 237, Part 3. Washington, DC.

Root, O. M. 1968. Spizella pallida (Swainson). Pages 1186-1208 in A. C. Bent, editor. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies. U.S. National Museum Bulletin 237.

Mayhew, W. W. 1968. Biology of desert amphibians and reptiles. Pp. 195-356 in Brown, G. W. Jr. (ed.). Desert biology. Vol. 1. 1968. Academic Press, New York, NY.

Horn, H. S. 1968. The adaptive significance of colonial nesting in the Brewer's Blackbird. Ecology 49:682-694.

Fairfield, G.M. 1968. Chestnut-collared Longspur. Pages 1635-1652 in O.L. Austin, Jr., editor. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies. Dover Publications, Inc., New York, NY.

Zweifel, R.G. 1968a. Rana boylii. Catalogue of American Amphibians and Reptiles 71:1-2.

Minckely, W.L. and J.E. Deacon. 1968. Southwestern fishes and the enigma of 'endangered species'. Science 159:1424-32.

Humphrey, P. S., D. Bridge, and T. E. Lowjoy. 1968. A technique for mist-netting in the forest canopy. Bird-Banding 39:43-50.

Little, R. McKirdy, H. 1968. Statewide Fisheries Investigations, Rancho Del Rio Grande Grant, Carson National Forest, Project numbers F-22-R-7 & 8. Job Number A-1. Job Completion Report, Research Project Segment, as Required by Federal Aid in Fish Restora

Ficken, M. S., and R. W. Ficken. 1968. Courtship behavior of Blue-winged Warblers and their hybrids. Wilson Bulletin 80:161-172.

Metcalf, A.L. 1967. Late quarternary mollusks of the Rio Grande valley, Caballo Dam New Mexico to El Paso, Texas.

Parmalee, P.W. 1967. The freshwater mussels of Illinois. Illinois State Museum, Popular Science Series 8:1-108.

Fuchs, E.H. 1967. Life history of the emerald shiner, Notropis atherinoides, in Lewis and Clark Lake, South Dakota. Transactions of the American Fisheries Society 96(3): 247-256.

Bond, J. 1967. Native birds of Mount Desert Island and Acadia National Park. Acad. Nat. Sci., Philadelphia, Pennsylvania.

Martin, S.G. 1967. Breeding biology of the bobolink. M.S. thesis. University of Wisconsin, Madison, WI.

Edsten, T. 1967. Transect data for Bernalillo Research Natural Area. US Forest Service, Region 3. Albuquerque, NM, 7p.

Morse, D. H. 1967. Competitive relationships between Parula Warblers and other species during the breeding season. Auk 84:490-502.

Verts, B.J. 1967. The biology of the striped skunk. Univ. Illinois Press, Urbana. vii+218 pp.

Gehlbach, F. R. 1967. Lampropeltis mexicana. Cat. Am. Amph.Rep. 55.1-55.2.

Iverson, S. L. 1967. Adaptations to arid environments in Perognathus parvus (Peale). Ph.D. Thesis, Univ. British Columbia, Vancouver. 130pp.

Burger, G. V. and J. P. Linduska. 1967. Habitat management related to bobwhite populations at Remington Farms. Journal of Wildlife Management 31:1-12.

Regan, D. P.. . Aspects of the life history and distribution of the Jemez Mountains salamander. University of New Mexico.Master's Thesis. .

Gehlbach, F.R. 1967. Vegetation of the Guadalupe escarpment, New Mexico-Texas. Ecology. 48(3):404-419.

U.S. Fish and Wildlife Service (USFWS). 1967. Native fish and wildlife: endangered species. Federal Register 32(48):4001.