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