Pete was an ordinary pigeon that was mutated by The Kraang into a humanoid form. During his captivity, he came in contact with Kirby O'Neil, April's father and also a prisoner of the Kraang. Kirby O'Neil taught Pete how to speak and had him deliver a message to his daughter April O'Neil in which he wanted to warn her of impending danger.
Pete was an ordinary pigeon that was mutated by The Kraang into a humanoid form. During his captivity, he came in contact with Kirby O'Neil, April's father and also a prisoner of the Kraang. Kirby O'Neil taught Pete how to speak and had him deliver a message to his daughter April O'Neil in which he wanted to warn her of impending danger.