Bluebird vs 'blue' bird
Not all birds with blue coloring are bluebirds. And not all birds with blue coloring are cavity- nesters. Discover the difference.

Male Western Bluebird by Andrew Johnson

Male Eastern Bluebird by Francesco Veronesi

Male Mountain Bluebird by Joe Chandler

Male Tree Swallow by Alan Vernon

Male Blue Grosbeak by Bill Bouton

Male California Scrub-Jay by Becky Matsubara

Male Steller’s Jay by Eric Ellingson

Male Blue Jay by Rob Hanson