Region 3 Research Natural Area Committee. 1973. Establishment Report for Bush Highway Research Natural Area, Tonto National Forest. US Forest Service, 24 p.

Drabek, C. M. 1973. Home range and daily activity of the round-tailed ground squirrel, Spermophilus tereticaudus neglectus. American Midland Naturalist 89:287-93.

Noy-Meir, I. 1973. Desert ecosystems: environment and producers. Annual Review of Ecology and Systematics. 4:25-51.

Owens, R. A., and M. T. Myres. 1973. Effects of agriculture upon populations of native passerine birds of an Alberta fescue grassland. Canadian Journal of Zoology 51:697-713.

Wilson, D. E. 1973a. The systematic status of Perognathus merriami Allen. Proc. Biol. Soc. Washington 86:175-192.

Whitaker, J. O., and L. L. Schmeltz. 1973. Food and external parasites of SOREX PALUSTRIS and food of SOREX CINEREUS from St. Louis County, Minnesota. Journal of Mammalogy 54(1):283-285.

Taylor, W. K. and B. H. Anderson. 1973. Nocturnal migrants killed at a central Florida TV tower; autumns 1969-1971. Wilson Bulletin 85:42-51.

Kleen, V. M. 1973. The density and territory size of breeding Prothonotary Warblers (PROTONTARIA CITREA) in southern Illinois. Southern Illinois University, Carbondale, Illinois. M.S. thesis.

Arbib, R. 1973. The Blue List of 1974. American Birds 27:943-5.

Shiller, R. J. 1973. Reproductive ecology of female sharp-tailed grouse and its relation to early plant succession in NW Minnesota. Ph.D. thesis. University of Minnesota. 186 pp.

Edwards, B. F. 1973. A nesting study of a small population of Prairie Falcons in southern Alberta. Canadian Field-Naturalist 87:322-324.

Peden, A. E. 1973. Variation in anal spot expression of gambussin females and its effect on male courtship. Copeia 1973:250-263.

Pence, D. B. 1973. Tetrameres aspinosa: New species from the snowy egret and a new host record for T. robusta (Nematoda: Tetrameridae). Trans. Amer. Microsc. Soc. 92:522-5.

Birney, E.C. 1973. Systematics of three species of wood rats (Genus: Neotoma) in central North America. University of Kansas Museum of Natural History. Miscellaneous publication (58) 1-173.

Woods, C. A. 1973. Erethizon dorsatum. American Socity of Mammalogists, Mammalian Species No. 29. 6pp.

Todsen, T.K. 1973. Sida 5:135.

Maher, W.J. 1973. Matador Project: Birds I. Population dynamics. Canadian Committee for the International Biological Programme, Matador Project, Technical Report 34. University of Saskatchewan, Saskatoon, Saskatchewan. 56 pp.

Emlen, J. T. 1973. Territorial aggression in wintering warblers at Bahama agave blossoms. Wilson Bulletin 85:71-74.

Scudday, J.F. 1973. A new species of lizard of the Cnemidophorus tesselatus group from Texas. Journal of Herpetology. 7(4):363-371.

Pizzimenti, J.J. and R.S. Hoffmann. 1973. Cynomys gunnisoni. Mammalian Species, 25:1-4.

Taylor, W. K. 1973. Black-throated Blue Warbler and Cape May Warblers killed in central Florida. Bird Banding 44:258-266.

Brander, R. B. 1973. Life-history notes on the porcupine in a hardwood-hemlock forest in upper Michigan. Michigan Academician 5:425-33.

Wright, M.E. 1973. Analysis of habitats of two woodrats in southern New Mexico. J. Mamm. 54(2):529-535.

Van der Schalie, H. 1973. The mollusks of the Duck River drainage in central Tennessee. Sterkiana 52:45-56.

Olendorff, R.R. 1973. The ecology of the nesting birds of prey of northeastern Colorado. U.S. International Biological Program, Grassland Biome Technical Report 211. Colorado State University, Fort Collins, CO. 233 pp.

Guillory, H.D. 1973. Motor vehicles and barbed wire fences as major mortality factors for the least bittern in southwestern Louisiana. Inland Bird Banding News 45:176-177.

Snyder, N. C. N., H. A. Snyder, J. L. Lincer, and R. T. Reynolds. 1973. Organochlorines, heavy metals, and the biology of North American accipters. Bioscience. 23:300-305.

Reddy, S. R., and T. J. Pandian. 1973. Effect of volume of water on predatory efficiency of the fish Gambusia affinis. Current Science 42:644-645.

van Halewijn, R. 1973. Black tern, CHLIDONIAS NIGER, in the south Caribbean Sea. Ardea 61:189-191.

Dunford, R. D. and R. B. Owen, Jr. 1973. Summer behavior of immature radio-equipped woodcock in central Maine. Journal of Wildlife Management 37: 462-469.

Van Devender, T. R., and C. W. Howard. 1973. Notes on natural nests and hatching success in the regal horned lizard (Phrynosoma solare) in southern Arizona. Herpetologica 29:238-239.

Brown, W. S. 1973. Ecology of the racer, Coluber constrictor mormon (Serpentes, Colubridae), in a cold temperate desert in northern Utah. Ph.D. thesis, Univ. Utah, Salt Lake City.

Barash, D. P. 1973c. Territory and foraging behavior of the pika (Ochotona princeps) in Montana. American Midland Naturalist 89:202-207.

Hadow, H. H. 1973. Winter ecology of migrant and resident Lewis' woodpeckers in southeastern Colorado. Condor 75:210-224.

Choate, J.R. 1973. Identification and recent distribution of white-footed mice (Peromyscus) in New England. J. Mammal 54(1):41-49.

Schipper, W. J. A. 1973. A comparison of Prey selection in sympatric harriers, CIRCUS species, in western Europe. Le Gerfaut 63:17-120.

Whitford, W.B. and W.G. Whitford. 1973. Combat in the horned lizard, Phrynosoma cornutum. Herpetologica 29(2):191-192

Faber, R. A., and J. J. Hickey. 1973. Eggshell thinning, chlorinated hydrocarbons and mercury in inland aquatic bird eggs, 1969 and 1970. Pestic. Monit. J. 7:27-36.

Aday, B.J. and A.L. Gennaro. 1973. Mammals (excluding bats) of the New Mexican Llano Estacado and adjacent river valleys. Natural Science Research Institute. Studies in Natural Sciences. 1 (5):1-33 + app.

Champie, C. 1973. Strangers in the Franklins. Privately published, El Paso, Texas.

Anderson, A. H., and A. Anderson. 1973. The cactus wren. Univ. Arizona Press, Tucson. xiv + 226 pp.

Barlow, J.C. 1973. Status of the North American population of the European tree sparrow. In a symposium on the house sparrow (PASSER DOMESTICUS) in North America. Amer. Ornith. Union, Monog. No. 14.

Hansen, R. M. and B. R. Cavender. 1973. Food intake and digestion by black-tailed prairie dogs under laboratory conditions. Acta Theriologica 18:191-200.

Crawford, J. A., and E. G. Bolen. 1973. Spring use of stock ponds by lesser prairie chickens. Wilson Bulletin 85:471-472.

Sheviak, C.J. 1973. A new Spiranthes from the grasslands of central North America. Botanical Museum Leaflets 23(7):285-297.

Williams, S.R. 1973c. Plethodon neomexicanus. Catalogue of American Amphibians and Reptiles 131:1-2.

Huver, C. W. 1973. A bibliography of the genus Fundulus. G. K. Hall and Company, Boston. v + 138 pp.

Ambrose, H.W. 1973. An experimental study of some factors affecting the spatial and temporal activity of Microtis pennsylvanicus. J. Mamm. 54:79-110.

Ffrench, R. P. 1973. A guide to the birds of Trinidad and Tobago. Livingston, Wynnewood, Pennsylvania.

Hester, F. E., and J. Dermid. 1973. The world of the wood duck. J. B. Lippencott Co., Philidelphia. 160 pp.

Hubbard, J. P., and B. J. Hayward. A biological survey of the San Francisco Valley (Greenlee County, Arizona to Catron County, New Mexico), with emphasis on habitats and vertebrates. Unpublished report prepared for USFS. 23 pp.

Landye, J.J. 1973. Status of the inland aquatic and semi-aquatic molluscs of the American Southwest. Unpubl. report for U.S. Dept Interior Bureau of Sport Fisheries and Wildlife Office of Rare and Endangered Spp. [now U.S. FWS] Albuq, NM. 60 pp.

Birkenholz, D.E. 1973. Habitat relationships of grassland birds at Goose Lake Prairie Nature Preserve. Pages 63-66 in L.C. Hulbert, editor. Proceedings of the Third Midwest Prairie Conference. Kansas State University, Manhattan, KS.

August, P.V. 1973. Scent communication in the Southern Plains wood rat, Neotoma micropus. American Midland Naturalist 99(1): 206-218.

Hubbard, J.P. 1973. Mexican junco. New Mex. Ornith. Soc. field notes. Hubbard, J.P. (ed) vol XII, no. 2, June 1 - Nov 30, 1973.

Eaton, R.L. 1973. The status, management, and conservation of the cougar in the United States. The World's Cats, 1:68-86.

Smith, D. G., and J. R. Murphy. 1973. Breeding ecology of raptors in the eastern Great Basin of Utah. Brigham Young University Science Bulletin, Biol. Ser. 13:1-76.

Yedlin, I. N., and G. W. Ferguson. 1973. Variation in aggressiveness of free-living male and female collared lizards, Crotaphytus collaris. Herpetologica 29: 268-275.

Michael, E. D. and W. H. Chao. 1973. Migration and roosting of Chimney Swifts in east Texas. Auk 90:100-105.

Zaret, T. M., and R. T. Paine. 1973. Species introduction in a tropical lake. Science 182:449-455.