Danforth, S. T. 1928. Bird observations in Jamaica during the summer of 1926. Auk 45:480-491.

Cooke, W.W. p. 330-331 in: Bailey, F.M. 1928. Birds of NM. NM Dept. of Game and Fish.

Kraatz, W.C. 1928. Study of the food of the blunt-nosed minnow, Pimephales notatus. Ohio Journal of Science 28(2):86-98.

Bailey, F. 1928. Birds of New Mexico. N.M. Dept. of Game & Fish, Santa Fe, NM. i-xxiv + 1-807

Wetmore, A. 1927. Our migrant shorebirds in southern South America. U.S. Department of Agriculture, Technical Bulletin No. 26, Washington, D.C. 24 pp.

Bailey, H. H. 1927. Data concerning the breeding range of certain marsh birds. Wilson Bulletin 39(3):176.

Klugh, A.B. 1927. Ecology of the red squirrel. J. Mamm. 8(l)1-32.

Wetmore, A. 1927. The birds of Porto Rico and the Virgin Islands. Scientific Survey of Porto Rico and the Virgin Islands, vol. 9, pt. 3, pp. 145-406. New York Acad. Sci.

Steele, E.S. 1927. Food of the Spotted Owl. The Condor. 29:123-124.

Coronado National Forest. 1927. Report for Santa Catalina Research Natural Area. US Forest Service, 132 p.

Bowles, J. H., and F. R. Decker. 1927. A comparative field study of Wright's and Hammond's flycatchers. Auk 44:524-528.

Pittman, H. H. 1927. The black terns of Saskatchewan. Condor 29:140-143.

Forbush, E. H. 1927. Birds of Massachusetts and other New England States. Part 2: Land birds from bob-whites to Grackles. Massachusetts Department of Agriculture, Boston, Massachusetts. 461 pp.

Bent, A.C. 1927. Life histories of North American shorebirds (Part I). U.S. Natl. Mus. Bull. 142, Washington, D.C.

Ligon, J.S. 1926. Habits of the Spotted Owl (Syrnium occidentale). The Auk. 43(4):421-429.

Winn, F. 1926. The west fork of the Gila River. Science. 64:16-17.

Hubbs, C.L. 1926. Studies of the fishes of the order Cyprinodotes. VI. Material for a revision of the American genera and species. Misc pub Mus Zool Univ Michigan no 16, pp 1-86.

Bent, A. C. 1926. Life histories of North American marsh birds. Bull. U.S. Nat. Mus. 135.

Howell, A. B. 1926. Voles of the genus Phenacomys. I. Revision of the genus Phenacomys. II. Life history of the red tree mouse (Phenacomys longicaudus). North American Fauna 48: i-iv, 1-66.

Stewart, N.H. 1926. Development, growth, and food habits of the white sucker, Catostomus commersonii (LeSueur). Bulletin of the United Status Bureau of Fisheries 42:147-184.

Holman, F. C. 1926. Nesting of the California Pygmy Owl in Yosemite. condor 28:92-93.

Forbush, E. H. 1925-1929. Birds of Massachusetts and other New England states. 3 vols. Massachusetts Dept. Agric., Boston.

Anthony, H. E. 1925. Mammals of Porto Rico, living and extinct--Chiroptera and Insectivora. Sci. Surv. Porto Rico and the Virgin Islands. Vol. IX, Part 1, pp. 1-96. New York Acad. Sci.

Forbush, E. H. 1925. Birds of Massachusetts and other New England states. Part 1: Water birds, marsh birds and shore birds. Massachusetts Department of Agriculture, Boston, Massachusetts. 486 pp.

Bent, A.C. 1925. Life histories of North American wild fowl.Order: Anseres (Part II). U.S. Natl. Mus. Bull. 130. Washington, D.C.

Chapin, E. A. 1925. Food habits of the vireos. U.S.D.A. Agricultural Bulletin. 42pp.

Fowler, H.W. 1925. Notes on North American Cyprinoid fishes. Proc Acad Nat Sci Phila. 76:389-416.

Johnson, C.E. 1925. The muskrat in New York: Its natural history and economics. Roosevelt Wildlife Bull., 3(2):205- 320.

Danforth, S. T. 1925. Porto Rican herpetological notes. Copeia (147):76-79.

Urner, C. A. 1925. Notes on two ground-nesting birds of prey. Auk 42:31-41.

Randall, T. E. 1925. Abnormally large clutches of eggs of short-eared owl (Asio flammeus). Canadian Field Naturalist Monographs 39:194.

Howell, A. H. 1924. Revision of the American pikas (genus Ochotona). North American Fauna 47:1-57.

Howell, A.H. 1924. Birds of Alabama. Dept. Game and Fish of Alabama, and U.S. Dept. Agric., Bur. Biol. Surv., Montgomery, Alabama. 348 pp.

Record, S., and C. Mell. 1924. Timbers of Tropical America. New Haven: Yale University Press, U.S.A. 610 pages.

Van Denburgh, J. 1924. Notes on the herpetology of New Mexico, with a list of species known from that state. Calif. Acad. Sci. Proc. 13:189-230.

Dubois, A.D. 1924. A nuptial song flight of the short-eared owl. Auk 41:260-263.

Wetmore, A. 1924. Food and economic relations of North American grebes. U.S. Department of Agriculture, Bureau of Biol. Surv, Rep. Bull. No. 1196.

Barnes, W. and F.H. Benjamin. 1924. Contributions to the Natural History of the Lepidoptera of North America 5(3): 99-199.

Casey, T.L. 1924. Additions to North American Coleoptera. Memoirs on the Coleoptera XI: 16 pp.

Ferriss, J.H. 1924. On the Rio Grande. The Nautilus. 38(2): 37-43.

Anderson, L.C. (1923) An Overview of the Genus Chrysothamnus (Asteraceae). Retrieved from Guadalupe Ranger District, Lincoln National Forest, USFS. 9 p.

Griscom, L. 1923. Birds of the New York City region. American Museum of Natural History, Handbook Series No. 9, New York, New York. 400 pp.

Bigelow, N.K. 1923. The food of young suckers, Catostomus commersonii, in Lake Nipigon. University of Toronto Studies. Publications of the Ontario Fisheries Research Laboratory 21: 83-115.

Barney, R.L. and B.J. Anson. 1923. Life history and ecology of the orange-spotted sunfish, Lepomis humilis. Report of the U.S. Commissioner of Fisheries, 1922, Bureau of Fisheries Document No. 938:1-16.

Jensen, J. K. 1923. Notes on the nesting birds of northern Santa Fe county, New Mexico. Auk. 40:452-468.

Urner, C.A. 1923. Notes on the short-eared owl. Auk 40:30-36.

Pilsbry, H.A. and E.G. Vanatta. 1923. Ashmunella hebardi, a new snail from the Hachita Grande Mountains, New Mexico. The Nautilus 36(4):119-120.

Vorhis, C.T. and W.T. Taylor. 1922. Life history of the kangaroo rat, DIPODOMYS SPECTABILIS Merriam. U.S. Dept. Agric., Bull no. 1091. 40 pp.

Chapin, J. P. 1922. The function of the oesophagus in the bittern's booming. Auk 39:196-202.

Ortmann, A.E. and B. Walker. 1922. On the nomenclature of certain North American naiades. Occasional Papers of the Museum of Zoology, University of Michigan, 112: 1-75.

Gross, A.O. 1921. The Dickcissel (SPIZA AMERICANA) of the Illinois prairie. Auk 38:1-26, 163-184.

Urner, C.A. 1921. Short-eared owl nesting at Elizabeth, New Jersey. Auk 38:602-603.

Michael, C. W. 1921. Pileated woodpecker versus Cooper hawk. Condor 23:68.

Vanatta, E.G. 1921. Shells of Zion National Park, Utah. Nautilus 34:140-141.

Donaldson, A. L. 1921. A history of the Adirondacks. Volumes 1-2. Century Company, New York, New York.

Bent, A.C. 1921. Life histories of North American gulls and terns. U.S. Natl. Mus. Bull. 113. Washington, D.C.

Barney, R. L., and B. J. Anson. 1921. Seasonal abundance of the mosquito destroying top-minnow, Gambusia affinis, especially in relation to fecundity. Anatomical Record 22:317-335.

Kennard, F.H. 1920. Notes on the breeding habits of the Rusty Blackbird in northern New England. Auk, 37:412-422.

Pennell, F.W. 1920. Scrophulariaceae of the central Rocky Mt states. Contrib U.S. Nat. Herb. 20:325-381.

Phillip, P. B., and B. S. Bowdish. 1919. Further notes on New Brunswick birds. Auk 36:36-45.