Cornell Lab of Ornithology
Cornell Lab of Ornithology: Cerulean Warbler
This comprehensive site contains an abundance of concise facts, colorful pictures, and sounds of the Cerulean Warbler. A menu of topics includes: range, habitat, food, behavior, reproduction and more.
Defenders of Wildlife
Defenders of Wildlife: Cerulean Warbler
Comprehensive wildlife site provides extensive data on the Cerulean Warbler. Discover more about its' diet, population, range, behavior and more.