What animal is described as crazy?

The term "crazy" is often used to describe the behavior of some species of monkeys, particularly the capuchin monkey. Known for their playful and mischievous antics, capuchins can engage in unpredictable and seemingly erratic behaviors that some might label as "crazy." Additionally, the term may also apply to the behavior of certain birds, like the kookaburra, known for their distinctive and raucous laughter-like calls. Ultimately, "crazy" is a subjective description that can apply to various animals based on their playful or unconventional actions.