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.

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.

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.

Hillman, G. N., and W. W. Jackson. 1973. The Sharp-tailed Grouse in South Dakota. South Dakota Department of Game, Fish and Parks Technical Bulletin 3. Pierre.

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.

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

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.

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 Unpublished report prepared for USFS. 23 pp.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.

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

Bequaert, J.C. and W.B. Miller. 1973. Bibliography in The Mollusks of the Arid Southwest. University of Arizona Press, Tuscon, Arizona. pp. 225-257.

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.

Kendeigh, S.C. 1973. Symposium on house sparrow and European tree sparrow. Lawrence. 127 pp.

Peterson, R.T., and E.L. Chalif. 1973. A field guide to Mexican birds. Houghton Mifflin Co., Boston. 298 pp.

Miller, Robert. 1972-1973. Sight record of Allium gooddingii on Sierra Blanca Peak.

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.

Campbell, H., D. K. Martin, P. E. Ferkovich, and B. K. Harris. 1973. Effects of hunting and some other environmental factors on the scaled quail in New Mexico. Wildlife Monographs 34.

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

Minckley, W. L. 1973. Fishes of Arizona. Arizona Game and Fish Department, Phoenix, Arizona. 293 pp.

Verbeek, N.A.M. 1973. The exploitation system of the yellow-billed magpie. University of California Publications in Zoology, Vol. 99, University of California Press, Berkeley.

Moody, T.M. (1973) Job Progress Report, Research Project Segment, as Required by Federal Aid in Fish Restoration Act. Statewide Fisheries Investigations, Crown Trout: Rio Grande Cutthroat Relationship, Federal Aid Project F-22-R-14 Job No. I-2. Retrieved

National Audubon Society. 1973. Seventy-third Christmas Bird Count. Audubon Field Notes 27:135-540.

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.

Choate, J.R. and E.D. Fleharty. 1973. Habitat preference and spatial relations of shrews in a mixed grassland in Kansas. Southwestern Nat. 18(1): 110-112.

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.

Rollins, R.C., and E.A. Shaw. 1973. The genus Lesquerella (Cruciferae) in North America. Harvard Univ. Press. Cambridge, MA. 288 pp.

Riffle, N. 1973. The flora of Mt Sedgwick and vicinity. Master's thesis, UNM

Bequaert, J.C. and W.B. Miller. 1973. The mollusks of the arid southwest with an Arizona checklist. University of Arizona Press: Tucson, Arizona. 271 pp.

Barr, J. F. 1973. Feeding biology of the common loon (GAVIA IMMER) in oligotrophic lakes of the Canadian shield. University of Guelph, Guelph, Ontario, Canada. Ph.D. dissertation.

Lester, L. A. 1973. An analysis of intraspecific variation in the chisel-toothed kangaroo rat, Dipodomys microps. M.A. thesis, California State Univ., Long Beach. 134 pp.

Brown, W. H. 1973. Winter population trends in the Marsh, Cooper's and sharp-shinned hawks. American Birds 27:6-7.

Ballinger, R. E. 1973. Comparative demography of two viviparous iguanid lizards (Sceloporus jarrovi and Sceloporus poinsettii). Ecology 54:269-283.

Jester, D. B. 1973. Variations in catchability of fishes with color of gill nets. Transactions American Fisheries Society. 102:109-15.

Emmel, T.C. and J.F. Emmel. 1973. The Butterflies of Southern California. Natural History Museum of Los Angeles County, Science Series 26, 148 pages.

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

Christiansen, J. L., and E. O. Moll. 1973. Latitudinal reproductive variation in a single subspecies of painted turtle, Chrysemys picta bellii. Herpetologica 29:152-163.

O'Farrell, M. J., and E. H. Studier. 1973. Reproduction, growth, and development in MYOTIS THYSANODES and M. LUCIFUGUS (Chiroptera: Vespertilionidae). Ecology 54:18-30.

Beqeuart, J.C. and W.B. Miller, 1973. The mollusks of the arid southwest with an Arizona checklist. Tucson: University of Az Press. 271 pp.

Wood, M. 1973a. Birds of Pennsylvania. Pennsylvania State University, College of Agriculture, University Park.