Blue Jay - Montana Field Guide
What Are Birds Saying with Their Crests?
The birds and the trees
All About Jays and How to Attact Them - Wild Birds Unlimited
How to Identify and Attract Blue Jays - Birds and Blooms
Birds: The blue jay is not everyone's favorite bird, but it is
All About Birds Northeast Princeton University Press
Birds of the World - Cornell Lab of Ornithology
Blue Jay Overview, All About Birds, Cornell Lab of Ornithology
Blue Jay Identification, All About Birds, Cornell Lab of Ornithology
Backyard Birdwatching in Boston (All About Birds Pocket Guide®)