Part 13

BAIRD, S. F.

1860. The birds of North America. J. B. Lippincott Co., lvi + 1003 pp., 1860.

BEDDARD, F. E.

1898. The structure and classification of birds. Longmans, Green & Co., xx + 548 pp., 252 figs., 1898.

BERGTOLD, W. H.

1917a. A study of the incubation period of birds. Kendrick-Bellamy Co., 109 pp., 1917.

1917b. Regurgitation in the Bohemian Waxwing. Auk, 34(3):341-342, 1917.

1924. A summer occurrence of the Bohemian Waxwing in Colorado. Auk, 41(4):614, 1924.

BOULTON, R.

1926. Remarks on the origin and distribution of the Zonotrichiae. Auk, 18(3):326-332, 1926.

BURLEIGH, T. D.

1921. Breeding birds of Warland, Lincoln County, Montana. Auk, 38(4):552-565, 1921.

BURT, W. H.

1930. Adaptive modifications in the woodpeckers. Univ. California Publ. Zool., 32(8):455-524, 29 figs. in text, 1930.

CARRIKER, M. A., JR.

1909-1912. An annotated list of the birds of Costa Rica including Cocos Island. Ann. Carnegie Mus., 6(1):314-915, 1909-1912.

CORY, C. B.

1886. The birds of the West Indies, etc. Auk, 3(2):187-245, 1886.

CROUCH, J. E.

1936. Nesting habits of the Cedar Waxwing. Auk, 53(1):1-8, 1936.

1943. Distribution and habitat relationships of the Phainopepla. Auk, 60(3):319-333, 1943.

ENGELS, W. L.

1938. Cursorial adaptations in birds--limb proportions in the skeleton of Geococcyx. Jour. Morph., 63:207-217, 3 figs. in text, 1938.

1940. Structural adaptations in Thrashers (Mimidae: Genus Toxostoma) with comments on interspecific relationships. Univ. California Publ. Zool., 42(7):341-400, 24 figs. in text, 1940.

FARLEY, J. A.

1924. Abnormal Cedar Waxwing. Auk, 41(1):160, 1924.

FISHER, H. I.

1946. Adaptations and comparative anatomy of the locomotor apparatus of New World Vultures. Amer. Midl. Nat., 35:545-727, 14 plates, 42 tables, 28 figs. in text, 1946.