Northcott, T. H. A. 1964. An investigation of the factors affecting carrying capacity of selected areas in Newfoundland for the beaver, Castor canadensis caecator Bangs, 1913. M.S. thesis, Memorial University, St. John's, Newfoundland. 133 pp.

Hespenheide, H. A. 1964. Competition and the Genus Tyrannus. Wilson Bull. 76:265-281.

Jones, R. E. 1964a. The specific distinctness of the greater and lesser prairie chickens. Auk 81:65-73.

Finzel, J.E. 1964. Avian populations of four herbaceous communities in southeastern Wyoming. Condor 66:496-510.

Slud, P. 1964. The birds of Costa Rica. Distribution and Ecology. Bull. Amer. Mus. Nat. Hist., 128:1-430.

Ahuja, S. K. 1964. Salinity tolerances of Gambusia affinis. Indian Journal of Experimental Biology 2:9-11.

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Llewellyn, L.M. and F.H. Dale. 1964. Notes on the ecology of the opossum in Maryland. Jour. Mamm. 45:113-122.

Chew, R. M., and B. B. Butterworth. 1964. Ecology of rodents in Indian Cove (Mojave Desert), Joshua Tree National Monument, California. Journal of Mammalogy 45:203-225.

Parker, H.L. 1964. Natural history of Pimephales vigilax (Cyprinidae). Southwestern Naturalist 8(4):228-235.

Lowe, C. H., editor. 1964. The vertebrates of Arizona with major section on Arizona habitats. Univ. Arizona Press, Tucson. 270 pp.

Flitner, G.A. 1964. Morphology and life history of the emerald shiner, Notropis atherinoides. University of Michigan, Ann Arbor. PhD Thesis. 213 pp.

Johnson, C. 1964. Polymorphism in the damselflies, Enallagma civile (Hagen) and E. praevarum (Hagen). The American Midland Naturalist. 72:408-416.

Schemnitz, S. D. 1964. Comparative ecology of bobwhite and scaled quail in the Oklahoma panhandle. American Midland Naturalist 71:429-433.

Armer, A. 1964. Report by the statewide control committee of the California State Chamber of Commerce.

Friedmann, H. 1963. Host relations of the parasitic Cowbird. Museum of Natural History. Smithsonian Institution, Washington, D. C.

Jewett, Stanely G. Jr. 1963. A stonefly aquatic in the adult stage. Science. 139: pp. 484-485.

Theobald, W.L., C.C. Tseng, and M.E. Mathias. 1963. A revision of Aletes and Neoparrya (Umbelliferae). Brittonia. 16:296-315.

Savage, T. 1963. Reproductive behavior of the mottled sculpin, Cottus bairdi (Girard). Copeia 1963(2):317-325.

U.S. Fish and Wildlife Service (USFWS). 1963. Inventory of areas occupied by prairie dogs in 1961. Branch of predator and rodent control. Circular.

Johnson, N. K. 1963. Biosystematics of sibling species of flycatchers in the Empidonax hammondii-oberholseri-wrightii complex. University of California Publication of Zoology 66:79-238.

Smith, R. L. 1963. Some ecological notes on the grasshopper sparrow. The Wilson Bulletin 75:159-65.

Errington, P.L. 1963. Muskrat populations. Iowa State Univ. Press, Ames. 665 pp.

Magnuson, J.J. and L.L. Smith, Jr. 1963. Some phases of the life history of the trout-perch, Percopsis omiscomaycus. Ecology 44(1):83-95.

Allred, D. M., and D. E. Beck. 1963a. Ecological distribution of some rodents at the Nevada atomic test site. Ecology. 44:211-214.

Stein, R. C. 1963. Isolating mechanisms between populations of Traill's flycatchers. Proc. American Philosophical Soc. 107:21-50.

Mumford, R.E. and D.A. Zimmerman. The southern yellow bat in New Mexico. J. of Mamm. 44:417-18.

Anderson, A. H., and A. Anderson. 1963. Life history of the cactus wren. Part VI. Competition and survival. Condor 65: 29-43.

Turner, F. B., and R. H. Wauer. 1963. A survey of the herpetofauna of the Death Valley area. Great Basin Naturalist 23:199-18.

Saunders, J.K. 1963. Movements and activities of the lynx in Newfoundland. J. Wildl. Mgmt. 27(3):390-400.

Arner, D. H. 1963. Production of duck food in beaver ponds. Journal of Wildlife Management 27:76-81.

Zenisek, C.J. 1963. A study of the natural history and ecology of the leopard frog, Rana pipiens (Schreber). Ph.D Thesis, Ohio State Univ., Columbus. 153 pp.

Short, L. L. 1963. Hybridization in the wood warblers VERMIVORA PINUS and V. CHRYSOPTERA. Proc. 13th Intl. Ornithol. Congr. 147-160.

Baldwin, P.H. and N. K. Zaczkowski. 1963. Breeding biology of the Vaux's Swift. Condor 65:400-406.

Erickson, H. R. 1963. Reproduction, growth, and movement of muskrats inhabiting small water areas in New York state. New York Fish and Game Journal 10:90-117.

Wiens, J.A. 1963. Aspects of cowbird parasitism in southern Oklahoma. Wilson Bulletin 75:130-139.

Ammann, C. A. 1963. Status and management of Sharp-tailed Grouse in Michigan. Journal of Wildlife Management 27: 802-809.

Cornwell, G. W. 1963. Observation on the breeding biology and behavior of a nesting population of belted kingfishers. Condor 65:426-431.

Gee, J.H. and T.G. Northcote. 1963. Comparative ecology of two sympatric species of dace, (Rhinichthys) in the Fraser River System, British Columbia. Journal of the Fisheries Research Board of Canada 20(1):105-118.

Weber, A., Vaarama, A. and Khanna, K. 1963. Specimen of Bartramia stricta Brid. University of Colorado, Museum of Natural History.

Anonymous. 1963. A monster named Gila. New Mexico Wildlife. 8(3):11.

Graber, R.R., and J.W. Graber. 1963. A comparative study of bird populations in Illinois, 1906-1909 and 1956-1958. Illinois Natural History Survey Bulletin 28:383-528.

Hoffman, D. M. 1963. The lesser prairie chicken in Colorado. Journal of Wildlife Management 27:726-732.

Brynildson, O.M., V.A. Hacker, and T.A. Klick. 1963. Brown trout, its life history, ecology, and management. Wis. Conserv. Dep. Publ. 234. 15 pp.

Jackson, A. S. and R. DeArment. 1963. The lesser prairie chicken in the Texas panhandle. Journal of Wildlife Management 27:733-737.

Honer, M. R. 1963. Observations on the barn owl in the Netherlands in relation to its ecology and population fluctuations. Ardea 51:158-95.

Bates, J. W. 1963. The effects of beaver on stream flow. Departmental Information Bulletin No. 63-13, Federal Aid Completion Report. Utah Sate Department of Fish and Game.

Chabreck, R. H. 1963. Breeding habits of the pied-billed grebe in an impounded coastal marsh in Louisiana. Auk 80:447-52.

James, P. and A. Hayse. 1963. Elf owl rediscovered in lower Rio Grande Delta of Texas. Wilson Bulletin 75:179-182.

Johnson, R. P. 1963. Studies on the life history and ecology of the bigmouth buffalo, Ictiobus cyprinellus (Valenciennes). Journal of the Fisheries Research Board of Canada 20(6):1397-1429.

Fitch, H. S. 1963. Natural history of the racer Coluber constrictor. Univ. Kans. Publ. Mus. Nat. Hist. 15(8): 351-468.

John, K. R. 1963. The effect of torrential rains on the reproductive cycle of Rhinichthys osculus in the Chiricahua Mountians, Arizona. Copeia 1963:286-291.

Jorgensen, C. D., and W. W. Tanner. 1963. The application of density probability function to determine the home ranges of Uta stansburiana stansburiana and Cnemidophorus tigris tigris. Herpetologica 19:105-115.

Aldrich, J. W. 1963. Geographic orientation of American Tetraonidae. Journal of Wildlife Management 27:529-545.

Fratteggiani-Bianchi, R. 1963. [Possibilities of using the leaves of the common cane (A. donax) in animal feeding]. Riv. Zootec., Milano 36(6):343-353.

Jones, R. E. 1963. Identification and analysis of lesser and greater prairie chicken habitat. Journal of Wildlife Management 27:757-778.

Laramie, H. A., Jr. 1963. A device for control of problem beavers. Journal of Wildlife Management 27:471-476.

Eisenberg, J.F. 1963. The behavior of heteromyid rodents. Univ. of CA Publ. Zool. 69. 100 pp.

Johnston, M. C. 1963. Past and present grasslands of south Texas and northeastern Mexico. Ecology 44:456-466.

Whitaker, J.O., Jr. 1963. A study of the meadow jumping mouse Zapus hudsonius (Zimmerman), in central New York. Ecol. Monogr., 33(3):215-254.