A blue jay typically weighs between 2.5 and 3.5 ounces. These birds can grow to a length of 10 to 12 inches with a wingspan of 13 to 17 inches.
Blue jays are very common birds found across almost the entire North American continent. They are omnivores and consumer mostly nuts, acorns and seeds but also feed on worms and insects. Little is known about their migration patterns and behaviors because they tend to vary greatly from bird to bird. Blue jays are intelligent, social birds and travel in small groups. When they do migrate south during winters, they form flocks of up to 250 birds.