Guide to the study of animal ecology

by Charles C. Adams

Beal, F. E. L.

1911. Food of the Woodpeckers of the United States. U. S. Dept. Agr., Bur. Biol. Surv., Bull. 37. pp. 64.

Chapman, F. M.

1902. The Economic Value of Birds to the State. Seventh Rep. N. Y. Forest, Fish, and Game Comm., 1901, pp. 115-176. Reprint, pp. 66, 1903. Albany.

Contains an extensive list of papers on the food of birds.

Eichelbaum, E.

1910. Über Nahrung und Ernährungsorgane von Echinodermen. Wiss. Meeruntersuch. heraus. von der Komm. zur wiss. Unter. der deutsch. Meere in Kiel. N. F. Bd. XI, Abth. Kiel, pp. 187-275.

Forbes, S. A.

1883. The Food Relations of Predaceous Beetles. Twelfth Rep. State Ent. Ill., pp. 105-120.

1903. The Food of Birds. Bull. Ill. State Lab. Nat. Hist., Second Edition, Vol. I, pp. 86-161.