Grzimek, B. 1975. Grzimek's animal life encyclopedia. Van Nostrand Reinhold Co., New York, NY.

Bednarz, J. 1975. A study of the Pecos Gambusia. Unpubl. report for Endangered Species Program, NM Dept Game and Fish, Santa Fe, 26 Nov 1975.

Dwight, J. 1975. Sequence of plumages and moults of the passerine birds of New York. Annal. New York Acad. Sci. XIII(2):73-360.

Rummel, L., and C. Goetzinger. 1975. The communication of intraspecific aggression in the common loon. Auk 92:333-46.

Brown, H.A. 1975. Reproduction and development of the red-legged frog, Rana aurora, in northwestern Washington. North-west Science 49(4):241-252.

Zimmerman, J.R. and A.H. Smith. 1975. A survey of the Deronectes (Coleoptera; Dytiscidae) of Canada, the United States, and Northern Mexico. Trans. Amer. Ent. Soc.. 101:715-717.

Mason, I. L. 1975. Beefalo: much ado about nothing? World Rev. of Animal Production 11(4):19-23.

Crawford, J. A., and E. G. Bolen. 1975. Spring lek activity of the lesser prairie chicken in west Texas. Auk 92:808-810.

Lamb, S.H. 1975. Woody plants of the Southwest, a field guide with descriptive text, drawings, range maps and photographs. The Sunstone Press, Santa Fe.

Stelfox, J. G. 1975. Range ecology of Rocky Mountain bighorn sheep in Canadian National Parks. Ph.D. thesis, University of Montana, Missoula.

Martin, S.C. 1975. Ecology and management of southwestern semi-desert grass-shrub ranges: the status of our knowledge. Research Paper RM-156. Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO.

Berry, K. H. 1975. Desert Tortoise relocation project: status report for 1973. Desert Tortoise Relocation Project. Division of Highways, CA. Contract F-9353.

Erskine, A.J. 1975b. Black cottonwood floodplain forest. American Birds 29:1132-1133.

Runnels, S.R. 1975. Rose-throated Becard in Jeff Davis County, Texas. Condor 77(2):221.

Clark, R.J. 1975. A field study of the short-eared owl (Asio flammeus) Pontoppidan in North America. Wildlife Monographs 47:1-67.

Meslow, E.C., and H.M. Wight. 1975. Avifauna and succession in Douglas-fir forests of the Pacific Northwest. Pages 266-271 in D.R. Smith, coordinator. Proceedings of the symposium on management of forest and range habitats for nongame birds. USDA Forest S

Crockett, A. B. and H. H. Hadow. 1975. Nest site selection by Williamson and red-naped sapsuckers. Condor 77(3):365-368

Murray, H.D. 1975. Melanoides tuberculata (Muller), Las Moras Creek, Brackville, Texas. Bulletin of the American Malacological Union, 1975: 43.

Luer, C.A. 1975. The native orchids of the United States and Canada excluding Florida. New York Botanical Garden. 361 pp.

Stewart, R. E. 1975. Breeding Birds of North Dakota. Tri-College Center for Environmental Studies, Fargo ND.

Akers, J. W. 1975. The least tern in Virginia: breeding biology and population distribution. M.S. thesis, William and Mary College, Williamsburg. 77 pp.

McIntyre, J. W. 1975. Biology and behavior of the common loon (GAVIA IMMER) with reference to its adaptability in a man-altered environment. University of Minnestoa, Minneapolis, Minnesota. Ph.D. dissertation.

Mount, R. H. 1975. The reptiles and amphibians of Alabama. Auburn University Agricultural Experiment Station, Auburn, Alabama. vii + 347 pp.

Elliot, R. (1975) Performance Report as Required by Federal Aid in Fish Restoration Act. Statewide Fisheries Investigations, Federal Aid Project F-22-R-16 Brown Trout:Rio Grande Cutthroat Relationship, Job No. I-2. Retrieved from Regional Office, USFS. 4

Freidmann, H., and Smith, F.D. 1975. A further contribution to the ornithology of northeastern Venezuela. Proceedings of the United States National Museum 104:463-524.

Schaffer, W.M. and P.F. Elson. 1975. The adaptive significance of variations in life history among local populations of Atlantic salmon in North America. Ecology 56(3): 577-590.

Franklin, W. L., A. S. Mossman, and M. Dole. 1975. Social organization and home range of Roosevelt elk. Journal of Mammalogy 56:102-118.

Radke, W. J. 1975. Opportunistic feeding of the Gila Woodpecker. Wilson Bulletin 87:275-276.

Egoscue, H. J. 1975. Population dynamics of the kit fox in western Utah. Bulletin of the Southern California Academy of Science 74:122-127.

Parker, W.S. and E.R. Pianka. 1975. Comparative ecology of populations of the lizard Uta stansburiana. Copeia 1975 (4):615-632.

Luer, C.A. 1975. The native orchids of the United States and Canada, excluding Florida. New York Botanical Garden. New York.

Gillis, J. E. 1975. Characterization of a hybridizing complex of leopard frogs. Ph.D. dissertation, Colorado State University, Fort Collins.

Castetter, E. F., P. Pierce, and K. H. Schwerin. 1975. A reassessment of the Genus Escobaria. Cactus and Succulent Journal. Vol XLVII. 60-70 pp.

Rogers, B.D. 1975. Fish distribution in the Mimbres River, New Mexico. Unpubl. report for NM Dept Game and Fish. 68 pp.

Nethersole-Thompson, D. 1975. Pine Crossbills: a Scottish contribution. T. and A. D. Poyser, Berkhamsted, U.K.

Nymeyer, Lynn A. 1975. Unpublished report on sighting of Aplomado Falcon. May 21, 1975.

MacNamara, M. C. and W. N. Harman. 1975. Further studies of the Mollusca of the Otsego Lake area. The Nautilus 89(3):87-90.

Welsh, D.A. 1975. Savannah Sparrow breeding and territoriality on a Nova Scotia dune beach. Auk 92:235-251.

Gilmer, D. S., I. J. Ball, L. M. Cowardin, J. H. Riechmann, and J. R. Tester. 1975. Habitat use and home range of mallards breeding in Minnesota. Journal of Wildlife Management 39:781-789.

Shake, W.F., and J.P. Mattsson. 1975. Three years of cowbird control: an effort to save the Kirtland's Warbler. Jack-Pine Warbler 53:48-53.

Fisk, E. J. 1975. Least tern: beleaguered, opportunistic, and root nesting. American Birds 29(1):15-16.

Paul, R. T., A. J. Meyerriecks, and F. M. Dunstan. 1975. Return of reddish egrets as breeding birds in Tampa Bay, Florida. Florida Field Naturalist 3:9-10.

Luer, C.A. 1975. The native orchids of the United States and Canada. New York Botanical Gardens.

Howard, R.P. 1975. Breeding ecology of the Ferruginous Hawk in northern Utah and southern Idaho. M.S. thesis. Utah State University, Logan, UT. 43 pp.

Sedgwick, J. A. 1975. A comparative study of the breeding biology of Hammond's (EMPIDONAX HAMMONDII) and Dusky (EMPIDONAX OBERHOLSERI) Flycatchers. M.S. Thesis, Univ. Montana. 201 pp.

Pflieger, W. L. 1975. The fishes of Missouri. Missouri Department of Conservation. Columbia, Missouri. viii + 343 pp.

Crockett, A. B. 1975. Ecology and behavior of the Williamson's Sapsucker in Colorado. Ph.D. dissertation, University of Colorado, Boulder.

MacNeill, C.D. 1975. Superfamily Hesperioidea. Pages 411-578 in: W.H. Howe, editor. The Butterflies of North America. Doubleday and Co., Garden City, New York.

Zimmerman, J. R. and A. H. Smith. 1975. A survey of the Deronectes (Coleoptera: Dytiscidae) of Canada, the United States and northern Mexico. Trans. Amer. Ent. Soc. 101:651-?

Higgins, K.F., and L.M. Kirsch. 1975. Some aspects of the breeding biology of the upland sandpiper in North Dakota. Wilson Bulletin 87:96-102.

Fitch, H. S., and M. V. Plummer. 1975. A preliminary ecological study of the soft-shelled turtle, TRIONYX MUTICUS, in the Kansas River. Israel J. Zool. 24:28-42.

Pizzimenti, J.J. 1975. Evolution of the prairie dog genus Cynomys. Occasional Papers of the Museum of Natural History. No. 30. 73p.

Gier, H. T. 1975. Ecology and behavior of the coyote (Canis latrans). Pages 247-262 in M. W. Fox, ed. The Wild Canids; their systematics, behavioral ecology and evolution. Van Nostrand and Reinhold Co., New York. xvi + 508 pp.

Armstrong, D. M. 1975. Rocky Mountain mammals. Rocky Mountain Nature Asscoc., Inc. 174 pp.

McKnight, B. and D. McKnight. 1975. Spring season (1 April - 31 May) bird report.

Sublette, J.S. 1975. A survey of the fishes of the Pecos, Canadian and Arkansas drainages in New Mexico. Unpubl. final report to NM Dept. Game & Fish, contract 0696, 4pp.

VanCamp, L. F. and C. J. Henny. 1975. The screech owl: itslife history and population ecology in northern Ohio. North Am. Fauna 71:1-65.

Jackman, S. M., and J. M. Scott. 1975. Literature review of twenty three selected forest birds of the Pacific Northwest. USDA Forest Service Region 6, Portland, OR. 382pp.

Marion, W. and R. Ryder. 1975. Perch-site preferences of four diurnal raptors in northeastern Colorado. Condor. 75:350-352.

Leffler, S.R., 1975. Collecting notes on tiger beetles in the southwestern United States. Cicindela 7(2):25-31.