OP 26Swales, B.H., 1916. The ornithological writings of Charles Fox. 2 pp. $0.50
OP 27Wood, N.A., F. Smith, and F.C. Gates, 1916. The summer birds of the Douglas Lake region, Cheboygan County, Michigan. 21 pp. $1.70
OP 50Wood, N.A., 1918. Notes on the birds of Alger County, Michigan. 15 pp., 1 foldout map. $1.20
OP 57Swales, B.H., 1918. The Purple Sandpiper at Cleveland, Ohio. 2 pp. $0.50
OP 119Wood, N.A., 1922. Observations on the birds of Berrien County, Michigan. 35 pp. $2.80
OP 194Metzelaar, J., 1928. Further experiments in inheritance of color in domestic pigeons. 29 pp., 1 plate, 1 figure. $2.30
OP 255Van Tyne, J., 1933. Some birds of the Rio Grande delta of Texas. 5 pp. $0.60
OP 256Van Tyne, J., 1933. A new solitary vireo from British Honduras. 2 pp. $0.50
OP 279Brodkorb, P., 1934. A new Pitta from Palawan, Philippine Islands. 3 pp., 1 table. $0.50
OP 280Wood, N.A. and A.D. Tinker, 1934. Fifty years of bird migration in the Ann Arbor region of Michigan, 1880-1930. 56 pp., 1 map. $4.50
OP 293Brodkorb, P., 1935. Geographical variation in Belonopterus chilensis (Molina). 13 pp., 3 tables. $1.10
OP 303Brodkorb, P., 1935. The name of the western race of red-headed woodpecker. 3 pp. $0.50
OP 306Brodkorb, P., 1935. A new flycatcher from Texas. 3 pp. $0.50
OP 314Brodkorb, P., 1935. Two new subspecies of the red-shafted flicker. 3 pp., 1 table. $0.50
OP 316Brodkorb, P., 1935. A new ovenbird from Paraguay. 2 pp. $0.50
OP 321Sutton, G.M. and J. Van Tyne, 1935. A new red-tailed hawk from Texas. 6 pp. $0.60
OP 331Brodkorb, P., 1936. A new genus for Empidonax atriceps Salvin. 2 pp., 1 table. $0.50
OP 332Brodkorb, P., 1936. Geographical variation in the Piñon Jay. 3 pp. $0.50
OP 333Brodkorb, P., 1936. A new subspecies of bittern from western North America. 4 pp. $0.50
OP 334Van Tyne, J. and W. Koelz, 1936. Seven new birds from the Punjab. 6 pp. $0.60
OP 336Sutton, G.M., 1936. The postjuvenal molt of the Grasshopper Sparrow. 9 pp., 1 color plate. $0.90
OP 345Brodkorb, P., 1937. New or noteworthy birds from the Paraguayan Chaco. 2 pp. $0.50
OP 349Brodkorb, P., 1937. Some birds of the Amazonian islands of Caviana and Marajó. 7 pp. $0.70
OP 355Sutton, G.M., 1937. The juvenal plumage and postjuvenal molt of the Chipping Sparrow. 5 pp. $0.60
OP 367Brodkorb, P., 1938. Five new birds from the Paraguayan Chaco. 5 pp. $0.60
OP 369Brodkorb, P., 1938. New birds from the District of Soconusco, Chiapas. 5 pp. $0.70
OP 379Van Tyne, J., 1938. Check list of the birds of Michigan. 44 pp., 1 map. $3.50
OP 382Brodkorb, P., 1938. A new species of crested tinamou from Paraguay. 4 pp. $0.50
OP 385Van Tyne, J., 1938. The Yucatan form of West Indian cliff swallow (Petrochelidon fulva). 3 pp., 1 table. $0.50
OP 394Brodkorb, P., 1938. Further additions to the avifauna of Paraguay. 5 pp. $0.60
OP 401Brodkorb, P., 1939. New subspecies of birds from the District of Soconusco, Chiapas. 7 pp. $0.70
OP 425Brodkorb, P., 1940. A new hawk from southern Mexico. 4 pp. $0.50
OP 439Van Tyne, J. and M.B. Trautman, 1941. New birds from Yucatán. 11 pp., 1 table. $1.00
OP 445Sutton, G.M., 1941. The juvenal plumage and postjuvenal molt of the Vesper Sparrow. 11 pp., 1 color plate. $1.00
OP 446Sutton, G.M., 1941. The plumages and molts of the young Eastern Whippoorwill. 7 pp., 1 color plate. $0.70
OP 449van Rossem, A.J., 1941. A race of the Blue-hooded Euphonia from Sonora. 4 pp. $0.50
OP 450Brodkorb, P., 1941. The pygmy owl of the District of Soconusco, Chiapas. 4 pp. $0.50
OP 453Brodkorb, P., 1941. A race of woodhewer from the Alta Parana. 3 pp. $0.50
OP 459Brodkorb, P., 1942. A revisionary study of the wren Thryothorus pleurostictus. 21 pp., 1 map, 2 tables. $1.70
OP 467Brodkorb, P., 1942. A new race of bob-white from interior Chiapas. 4 pp., 1 table. $0.50
OP 474Sutton, G.M., 1943. Notes on the behavior of certain captive young fringillids. 14 pp. $1.10
OP 478Brodkorb, P., 1943. Two new flycatchers of the genus Elaenia. 4 pp., 1 table. $0.50
OP 480Brodkorb, P., 1943. The rufous-browed wrens of Chiapas, Mexico. 3 pp., 1 table. $0.50
OP 491Van Tyne, J., 1944. The nest of the antbird Gymnopithys bicolor bicolor. 7 pp., 1 plate. $0.70
OP 496Van Tyne, J. and M.B. Trautman, 1946. The red-winged blackbird of Yucatan. 3 pp., 1 table. $0.50
OP 505Sutton. G.M. and W.H. Phelps, 1948. Richmond's swift in Venezuela. 6 pp. $0.60
OP 511Sutton, G.M., 1948. The juvenal plumage of the Eastern Warbling Vireo (Vireo gilvus gilvus). 7 pp., 1 color plate. $0.70
OP 525Van Tyne, J., 1950. Bird notes from Barro Colorado Island, Canal Zone. 16 pp., 4 plates. $1.30
OP 532Storer, R.W., 1951. Variation in the Painted Bunting (Passerina ciris), with special reference to wintering populations. 12 pp., 2 tables. $1.00
OP 538Van Tyne, J. and H. Mayfield, 1952. Bird records from New Providence and Eleuthera Islands, Bahamas. 4 pp. $0.50
OP 608Zimmerman, D.A. and J. Van Tyne, 1959. A distributional check-list of the birds of Michigan. 63 pp., 1 map. $5.00
OP 609Storer, R.W. and D.A. Zimmerman, 1959. Variation in the Blue Grosbeak (Guiraca caerulea) with special reference to the Mexican populations. 13 pp., 3 tables. $1.10
OP 615Van Tyne, J. and W.H. Drury, Jr., 1959. The birds of southern Bylot Island, 1954. 43 pp., 3 plates, 2 figures, 1 table. $3.40
OP 621Storer, R.W., 1961. Two collections of birds from Campeche, Mexico. 20 pp. $1.60
OP 648Storer, R.W. and F.B. Gill, 1966. A revision of the mascarene white-eye, Zosterops borbonica (Aves). 7 pp., 1 figure, 1 table. $0.70
OP 651Ligon, J.D., 1967. Relationships of the cathartid vultures. 26 pp., 6 figures, 7 tables. $2.10
OP 652Storer, R.W. and W.W. Dalquest, 1967. Birds from the Save River area of Mozambique. 14 pp. $1.10
OP 655Feduccia, J.A. and R.L. Wilson, 1967. Avian fossils from the Lower Pliocene of Kansas. 6 pp., 2 figures, 1 table. $0.60
OP 714Payne, R.B., 1987. Populations and type specimens of a nomadic bird: comments on the North American crossbills Loxia pusilla Gloger 1834 and Crucirostra minor Brehm 1845. 37 pp., 3 figures, 6 tables. $3.20
OP 719Storer, R.W., 1989. Notes on Paraguayan birds. 21 pp. $2.00
OP 723Prum, R.O., 1990. A test of the monophyly of the manakins (Pipridae) and of the cotingas (Cotingidae) based on morphology. 44 pp., 6 figures, 2 tables.