Robo-chicken

Robo-chickens are mechanical creatures native to Velocitron (and possibly Cybertron.) They are notable for their tendency to run around wildly even after the removal of their head-servos.

They frequently cross Velocitron's numerous speedways. Exactly why has yet to be determined.

Fiction

Cybertron cartoon

According to Ransack and Crumplezone, Wing Saber and Jetfire were running around like decapitated robo-chickens on a wild goose chase. Titans