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 Unpublished report on sighting of Aplomado Falcon.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.

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.

Atwood, N. D. 1975b. Phacelia crenulata group. Great Basin Naturalist 35: 181-182.

Froese, A. D., and G. M. Burghardt. 1975. A dense natural population of the common snapping turtle (Chelydra serpentina). Herpetologica 31:204-208.

Plummer, M. V., and H. W. Shirer. 1975. Movement patterns in a river population of the softshell turtle, TRIONYX MUTICUS. Occasional Papers of the Museum of Natural History, University of Kansas 43:1-26.

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.

Bartlett, D. 1975. The flight of the snow geese. 189 pp.

Wright, F. T. 1975. Atlantic salmon (Salmo salar): an annotated bibliography. U.S. Fish and Wildlife Service Technical Paper 83:1-22.

Mason, C.T., Jr. 1975. Apacheria chiricahuensis: a new genus and species from Arizona. Madrono 23(3):105-108.

Lustig, L. W., and V. Flyger. 1975. Observations and suggested management practices for the endangered Delmarva fox squirrel. Proc. S. E. Assoc. Game and Fish Comm. 29:433-40.

Castetter, Pierce, and Schwerin. 1975. Escobaria orcuttii var. macraxina. Cactus & Succulent Journal. 47:3.

Higgins, K.F. 1975. Shorebird and game bird nests in North Dakota croplands. Wild. Soc. Bull. 3:176-179.

Reed, A. 1975. Migration, homing, and mortality of breeding female eiders SOMATERIA MOLLISSIMA DRESSERI of the St. Lawrence estuary, Quebec. Ornis Scand. 6:41-47.

Green, J. C. and R. B. Janssen. 1975. Minnesota birds: where, when and how many. University of Minnesota Press, Minneapolis, Minnesota. 217 pp.

Braun, C. E., et al. 1975. Results of the Four Corners cooperative band-tailed pigeon investigation. USFWS Resource Publ. 126:1-20.

McCarty, R. 1975. Onychomys torridus. Mammalian Species 59:1-5.

McNicholl, M. K. 1975. Larid site tenacity and group adherence in relation to habitat. Auk 92:98-104.

Conner, R. N., and C. S. Adkisson. 1975. Effects of clearcutting on the diversity of breeding birds. Journal of Forestry 73:781-5.

Jeglum, J. K. 1975. Vegetation-habitat changes caused by damming a peatland drainageway in northern Ontario. Canadian Field-Naturalist 89:400-412.

Reese, J. G. 1975. Diurnal vocalization by a wintering black rail. Maryland Birdlife 31(1):13-15.

Burch, J.B. 1975a. Freshwater unionacean clams (Mollusca: Pelecypoda) of North America. Malacological Publications: Hamburg, Michigan. 204 pp.

S51CASSBNMUS, Legacy reference. Physical copy not yet located.

Neuenschwander, L.F., S.H. Sharrow, and H.A. Wright. 1975. Review of tobosa grass (Hilaria mutica). Southwest. Nat.. 20(2):255-263.

Medica, P. A. 1975. Rhinocheilus, R. lecontei. Cat. Am. Amph. Rep. 175.1-175.4.

Davis, C. A., R. C. Barkley, and W. C. Haussamen. 1975. Scaled quail foods in southeastern New Mexico. Journal of Wildlife Management 39:496-502.

Alison, R.M. 1975. Breeding biology and behavior of the old-squaw (CLANGULA HYEMALIS). Amer. Ornith. Union, Monog. No. 18. 52 pp.

McVaugh, W., Jr. 1975. The development of four North American herons (II). Living Bird 14:163-183.

Shields, O. 1975. Studies on North American Philotes (Lycaenidae). IV. Taxonomic and biological notes, and new subspecies. Bulletin of the Allyn Museum 28: 1-36.

Bogan, M. A. 1975. Geographic variation in MYOTIS CALIFORNICUS in the southwestern United States and Mexico. U.S. Fish and Wildl. Serv. Res. Rep. 3:1-31.

Harrison, H.H. 1975. A field guide to bird's nests in the U.S. east of the Mississippi River. Houghton Mifflin Company, Boston, Massachusetts. 257 p.

Norman, R.F., and F.J. Robertson. 1975. Nest-searching behavior in the Brown-headed Cowbird. Auk 92:610-611.

Merkle, D. A. 1975. A taxonomic analysis of the Clemmys complex (Reptilia: Testudines) utilizing starch gel electrophoresis. Herpetologica 31:162-166.

Erskine, A. J. 1975a. Aspen-willow forest. American Birds 29:1131-1132.