Gyro is Hotwing's bird partner.
Gyro's creation is a never documented. It appears that he was created to backup Hotwing whenever he was on a solo mission. However, at least once in the series, he was badly damaged, possibly even destroyed. Given that he is most likely a robot, he could have been rebuilt or replaced.
Gyro is a golden brown hawk robot with a visor over his eyes. He can fly with or without an atmosphere as necessary. His primary ability is to spin and create a massive light show. Hotwing can use this as a distraction to attack or sabotage his opponent's plans.