What is the biggest blue jay?

The biggest blue jay is typically the Eastern Blue Jay (Cyanocitta cristata), which can measure about 9 to 12 inches in length and weigh between 70 to 100 grams. They are known for their vibrant blue plumage, distinctive crest, and loud calls. Blue jays are highly intelligent and social birds, often seen in family groups. Their range extends across North America, from southern Canada to the central and eastern United States.