Other predators included Blue Jays, and golden mice. I found that crows quickly developed search images for artificial nests, which were densely and regularly placed within the plots. Despite the fact that crows were also important predators of natural nests and predation rates between natural and artificial nests were correlated, artificial nests were a poor mimic of natural nests. Artificial nests failed to mimic variation within and between years in predation of natural nests, predators differed between nest types, and crows trap-lined artificial nests but not natural nests. Literature Cited Askins, R. A., J. F. Lynch, and R. S. Greenberg.
Population declines in migratory birds in eastern North America.
Buler, J. J., and R. B. Hamilton. Predation of natural and artificial nests in a southern pine forest. Hunter, W. C. 1998. Prioritization Process - Physiographic Area Tables. Southeast Partners in Flight, U.S. Fish and Wildlife Service.