1908. The Behavior of Noddy and Sooty Terns. Pub. 103, Carnegie Inst. pp. 187-255.

An excellent account of bird behavior in colonial species.

Wheeler, W. M.

1903. Ethological Observations on an American Ant (Leptothorax Emersoni Wheeler). Jour. für Psychol. und Neurol., Bd. II, pp. (1-31).

1910. Ants, their Structure, Development and Behavior. pp. 663. New York.

The most useful single work on ants, ant behavior, slaves, commensals, etc.; a very important work. Extensive references.

Whitman, C. O.

1899. Animal Behavior. Biol. Lectures, Marine Biol. Lab., Wood’s Holl, 1898, pp. 285-338.

Behavior of leech, Necturus, birds, etc.

Wickham, H. F.