1. Monogr. Popul. Biol.;M.L. Cody,1974
2. Croat, T.B.: Flora of Barro Colorado Island. Stanford, Calif.: Stanford Univ. Press 1978
3. Emlen, J.T.: The avifauna of Grand Bahama Island. A.O.U. Ornithological Monogr. No. 12 (1978)
4. Gale, N.: A checklist of the birds of Pipeline Road area. Balboa, Canal Zone: Panama Canal Zone Audubon Society 1978
5. Heinrich, B.: Foraging strategies of caterpillars, leaf damage and possible predator avoidance strategies. Oecologia 42, 325?339 (1979)