Who is the toughest bird? - FeederWatch
Blue Jay - Cyanocitta cristata - Birds of the World
Birds: The blue jay is not everyone's favorite bird, but it is
Princeton University Press
ALL ABOUT BIRDS Regional Field Guides
Year-round Bird Watching in Ohio
Blue Jay Overview, All About Birds, Cornell Lab of Ornithology
Cornell Lab of Ornithology—Home Birds, Cornell Lab of Ornithology
Five fascinating facts about bedeviling blue jays
Blue Jay – Westbury Nature Trail: Observation for Conservation
Charles Seabrook's Wild Georgia
Facts About the Local Blue Jays
Blue Jay - Cyanocitta cristata - Birds of the World
Mysterious Migration of Blue Jays