Ornithologist John James Audubon of the Audubon Society accused blue jays of "selfishness, duplicity, and malice," and the birding community has widely adopted his perspective.
These noisy bullies intimidate smaller perching birds with territorial behavior and aggression, imitating the cry of the predatory red-shouldered or broad-winged hawks.
These birds are also known as nest-robbers, and while they mainly eat greens, fruits, and seeds, they do occasionally make a meal of other birds' eggs.