Utah - Blue Jays
Steller's jay - Wikipedia
Oregon Backyard Feeder Birds: The Definitive Guide
Steller's Jay Identification, All About Birds, Cornell Lab of Ornithology
Steller's jay - Wikipedia
Winter Feeder Birds: Identifying Blue Birds
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Steller's Jay
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Steller's Jay - Wikidata
Pam Koch/PFW, Flagstaff, Arizona, February 2009