1. Denslow, J. S., Levey, D.J., Moermond, T.C., and Wentworth, B. C., 1987, A synthetic diet for fruit-eating birds, Wilson Bull., 99: 131–134.
2. Mason, J. R., Adams, M. A., and Clark, L., 1989, Anthranilate repellency to starlings: chemical correlates and sensory perception, J. Wildl. Manage., 53:55–64.
3. Nicolaus, L., 1987, Conditioned aversions in a guild of egg predators: implications for aposematism and prey defense mimicry, Am. Midl. Nat., 117: 405–419.
4. Post, W., 1990, Nest survival in a large ibis-heron colony during a three-year decline to extinction, Colon. Waterbirds, 13:50–61.
5. Welty, J. C., 1975, “The Life of Birds”, 2nd ed., W. B. Saunders, Phila-delphia.