Foraging Ecology of Bald Eagles
Knight and Skagen collected during a field study on the foraging behaviour of wintering Bald Eagles in Washington State, USA data concerning 160 attempts by one (pirating) Bald Eagle to steal a chum salmon from another (feeding) Bald Eagle.
Knight, R. L. and Skagen, S. K. (1988) Agonistic asymmetries and the foraging ecology of Bald Eagles. Ecology 69, 1188--1194.
Venables, W. N. and Ripley, B. D. (1999) Modern Applied Statistics with S-PLUS. Third Edition. Springer.
eagles.glm <- glm(cbind(y, n - y) ~ P*A + V, data = eagles, family = binomial) dropterm(eagles.glm) prof <- profile(eagles.glm) plot(prof) pairs(prof)