Scott, W. B., and E. J. Crossman. 1973. Freshwater fishes of Canada. Fisheries Research Board of Canada, Bulletin 184. 966 pp.

Long, C. A. 1973. Taxidea taxus. American Society of Mammalogy, Mammalian Species No. 26. 4 pp.

Ligon, J. D. 1973. Foraging behavior of the white-headed woodpecker in Idaho. Auk 90:862-869.

Webb, R. G. 1973. Trionyx muticus. Cat. Am. Amph. Rep. 139.1-139.2.

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

Bequaert, Joseph C., and Walter B. Miller. 1973. Biblio- graph in The Mollusks of the Arid Southwest. University of Arizona Press, Tuscon, Arizona. pp. 225-257.

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

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

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.

Seidensticker, J. C., IV, M. C. Hornocker, W. V. Wiles, and J. P. Messick. 1973. Mountain lion social organization in the Idaho Primitive Area. Wildlife Monogr. 35:1-60.

Maestrelli, J. R. 1973. Propagation of barn owl in captivity. Auk 90:426-8.

Martin, D. J. 1973. Burrow digging by barn owls. Bird-Banding 42:59-60.

Weller, M. W., and L. H. Frederickson. 1973. Avian ecology of a managed glacial marsh. The Living Bird 12:269-291.

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.

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

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

Snow, C. 1973. Habitat management series for unique or endangered species, Report No. 7, Golden Eagle, AQUILA CHRYSAETOS. Bureau of Land Management, U.S. Dept. of Int., Technical Note, T-N-239, Denver.

Rickett, H. W. 1973. Wild flowers of the United States: Vol. 6 (3 parts). The central mountains and plains. McGraw-Hill Book Company, New York. 784 pp. + plates.

Miller, R. R., and J. E. Deacon. 1973. New localities of the rare Warm Springs pupfish, CYPRINODON NEVADENSIS PECTORALIS, from Ash Meadows, Nevada. Copeia 1973:137-140.

Morse, D. H. 1973. The foraging of small populations of yellow warblers and American redstarts. Ecology 54:346-55.

Weydemeyer, W. 1973. Singing habitats of Traill's flycatcher in northwestern Montana. Wilson Bull. 85(3):276-282.

Tanyolac, J. 1973. Morphometric variation and life history of the cyprinid fish, Notropis stramineus (Cope). Occasional Papers of the Museum of Natural History, University of Kansas 12, 28 pp.

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.

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

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.

Walkinshaw, L. H. 1973. Cranes of the world. Winchester Press, New York.

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

Moll, E. O. 1973. Latitudinal and intersubspecific variation in reproduction of the painted turtle, Chrysemys picta. Herpetologica 29:307-318.

Moshenko, R.W. and J.H. Gee. 1973. Diet, time, and place of spawning and environments occupied by creek chub, Semotilus atromaculatus, in the Mink River, Manitoba. Journal of the Fisheries Research Board of Canada 30(3):357-362.

Wiens, J.A. 1973. Interterritorial habitat variation in Grasshopper and Savannah Sparrows. Ecology 54:877-884.

Torres, J. R. 1973. The status of the black-tailed prairie dog and the black-footed ferret in North Dakota. Pp. 51-9 in Proceedings of the Black-footed ferret and prairie dog workshop. South Dakota State Univerity, Brookings, SD.

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.

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

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.

Buxbaum, K. 1973. Status of the dark-rumped petrel on Maui, 1972. 'Elepaio 34:11-12.

Murie, J. O. 1973. Population characteristics and phenology of a Franklin ground squirrel (Spermophilus franklinii) colony in central Alberta. American Midland Naturalist 90:334-40.

Otto, R. G. 1973. Temperature tolerance of the mosquitofish, Gambusia affinis (Baird and Girard). Journal of Fish Biology 5:575-85.

Wiens, J.A. 1973. Pattern and process in grassland bird communities. Ecological Monographs 43:237-270.

Vermeer, K. 1973a. Some aspects of the breeding and mortality of common loons in east-central Alberta. Canadian Field-Naturalist 87:403-8.

Keenlyne, K. D., and J. R. Beer. 1973. Food habits of Sistrurus catenatus catenatus. Journal of Herpetology 7:382-384.

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

Isleib, M.E., and B. Kessel. 1973. Birds of the North Gulf Coast-Prince William Sound Region, Alaska. Biological Papers of the University of Alaska, Number 14, Fairbanks.

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.

Kushlan, J. A. 1973. Least bittern nesting colonially. Auk 90:685-686.

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

James, R. D. 1973. Ethological and ecological relationships of yellow-throated and solitary vireos (Aves: Vireonidae) in Ontario. Ph.D. thesis, Department of Zoology, University of Toronto, Toronto, Ontario, Canada.

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.

Mayhew, J. 1973. Variations in the catch success of channel catfish and carp in baited hoop nets. Proceedings Iowa Academy of Sciences. 80:136-9.

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.

Poelker, R. J., and H. D. Hartwell. 1973. Black bear of Washington. Washington State Game Department Biol. Bulletin No. 14, viii + 180 pp.