Anderson, J.D. 1968. A comparison of the food habits of Ambystoma macrodactylum sigillatum, Ambystoma macrodactylum croceum, and Ambystoma tigrinum califoriense. Herpetologica 24(4):273-284.

Mueller, H. C. and D. D. Berger. 1968. Sex ratios and measurements of migrant goshawks. Auk 85:431-436.

Larson, J. S., and F. C. Van Nostrand. 1968. An evaluation of beaver aging techniques. Journal of Wildlife Management 32:99-103.

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.

Baepler, D.H. 1968. Lark Sparrow. Pages 886-902 in A.C. Bent, editor. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies. Dover Publications Inc., New York, NY.

Netboy, A. 1968. The Atlantic salmon, a vanishing species. Faber and Faber, London. 457 pp.

Ligon, J. D. 1968. Observations on Strickland's Woodpecker, DENDROCOPOS STRICKLANDI. Condor 70:83-84.

Cronan, John M. and Albert Brooks. 1968. THE MAMMALS OF RHODE ISLAND. RHODE ISLAND DEPT. OF NATURAL RESOURCES. 133 PP.

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.

Buckner, C. H., and D. G. H. Ray. 1968. Notes on the water shrew in bog habitats of southeastern Manitoba. Blue Jay 26(2):95-6.

Raitt, R. J. and R. L. Maze. 1968. Densities and species composition of breeding birds of a creosote bush community in southern New Mexico. Condor 70:193-205.

Linzey, D. W., and A. V. Linzey. 1968. Mammals of the Great Smoky Mountains National Park. J. Elisha Mitchell Sci. Soc. 84(3):384-414.

King, J. A. (ed.). 1968. Biology of PEROMYSCUS (Rodentia). Am. Soc. Mamm. Spec. Publ. No. 2. 593 pp.

Cole, C. J. 1968. Sceloporus virgatus. Cat. Am. Amph. Rep. 72.1-72.2.

Weston, J.B. 1968. Nesting ecology of the Ferruginous Hawk, BUTEO REGALIS. Brigham Young University Science Bulletin 10:25-36.

Rumsey, R. L. 1968. Capture and care of pileated and red-headed woodpeckers. Bird-Banding 39:313-6.

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.

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

Ficken, R. W., M. S. Ficken, and D. H. Morse. 1968. Competition and character displacement in two sympatric pine-dwelling warblers (DENDROICA, Parulidae). Evolution 22:307-14.

Taber, W. 1968. PASSERCULUS SANDWICHENSIS NEVADENSIS: Nevada Savannah Sparrow. Pages 708-711 in A.C. Bent, editor. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies, Part 2. Dover Publications, Inc., N

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.

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

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.

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.

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

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

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

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

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.

Gibbons, J.W. 1968a. Population structure and survivorship in the painted turtle, Chrysemys picta. Copeia 1968(2): 260-268.

Hutchins, B. 1968. Survey form for Malaxis ehrenbergii. 1 p.

Lein, M.R. 1968. The breeding biology of the Savannah Sparrow, PASSERCULUS SANDWICHENSIS (Gmelin), at Saskatoon, Saskatchewan. M.S. thesis. University of Saskatchewan, Saskatoon, Saskatchewan. 171 pp.

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.

Lane, J. 1968. Baird's sparrow (AMMODRAMUS BAIRDII). In A. C. Bent. Life histories of North American cardinals, grosbeaks, huntings, towhees, finches, sparrows and allies, part two. U.S. National Museum Bulletin. 237:603-1248.

Bent, A.C., et al. 1968. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies. Part Two. U.S. National Museum Bulletin 237. (reprinted by Dover Publications, Inc., New York, NY).

Coulter, M. W., and W. R. Miller. 1968. Nesting biology of Black Ducks and Mallards in northern New England. Vermont Fish and Game Department Bulletin 68-2.

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.

McGahan, J. 1968. Ecology of the golden eagle. Auk 85:1-12.

Taylor, W. K. 1967. Breeding biology and ecology of the Verdin, AURIPARUS FLAVICEPS (Sundevall). Ph.D. dissertation, Arizona State University, Tempe.

Dixon, J. R. 1967. Aspects of the biology of the lizards of the White Sands, New Mexico. Los Angeles County Museum of Natural History Contributions in Science (129):1-22.

Crosswhite, F. S. 1967. Revision of Penstemon Section Habroanthus (Scrophulariaceae 1: Conspectus. The American Midland Naturalist. Herbarium, Department of Botany, University of Wisconsin, Madison 53706. 3 p.

Greenlaw, J. S., and J. Swinebroad. 1967. A method for constructing and erecting areal nets in a forest. Bird-Banding 38:114-9.

Cross, F. B. 1967. Handbook of fishes of Kansas. University of Kansas Museum of Natural History Miscellaneous Publication No. 45. 357 pp.

Findley, J. S. and C. Jones. 1967. Taxonomic relationships of bats of the species Myotis fortidens, M. lucifugus and M. occultus. Journal of Mammalogy 48:429-444.

Garner, H.W. 1967. An ecological study of the brush mouse,Peromyscus boylii, in western Texas. Texas J. Sci. 19:285- 291.

Lowe, C. H., D. S. Hinds, and E. A. Halpern. 1967. Experimental catastrophic selection and tolerances to low oxygen concentration in native Arizona freshwater fishes. Ecology. 48:1013-1017.

Lawrence, L. deK. 1967. A comparative life-history study of four species of woodpeckers. Ornithological Monographs No. 5. 156 pages.

Graul, W. D. 1967. Population movements of the Harris' sparrow and tree sparrow in eastern Kansas. Southwestern Naturalist 12:303-310.

McCoy, C.J. 1967. Natural history notes on Crotaphytus wisli zeni (Reptilia: Iguanidae). Amer. Midl. Nat. 77(1):138-146.

Mager, W. 1967. Nestling swallow-tailed kite banded on Key Largo, recovered in Brazil. Florida Naturalist 40:13-14.

Moisan, G., R. I. Smith, and R. K. Martinson. 1967. The green-winged teal: its distribution, migration, and population dynamics. U.S. Fish and Wildl. Serv., Spec. Sci. Rep., Wildlife No. 100. 248 pp.

Hohn, E.O. 1967. Observations on the breeding biology of Wilson's Phalaropes in central Alberta. Auk 84:220-244.