Blue Jay (Cyanocitta cristata) - North American Birds - Birds of North America
Eastern Bluebird Ohio Department of Natural Resources
Handbook of birds of eastern North America : with keys to the species, and descriptions of their plumages, nests and eggs, their distribution and migrations . Il^^. 1. Bald pate.
Types of Blue Birds in NC: Bluebirds, Indigo Buntings, and Jays - Owlcation
Identification of the Female Eastern Bluebird - Avian Report
UPDATED: Types of Blue Birds: 20 Most Common Species (With Photos)
Which Bluebird Species Are You Seeing in Your State? - Avian Report
11 Types of Blue Birds of North America (With Pictures)
Eastern Bluebird Identification, All About Birds, Cornell Lab of Ornithology