The general Clucky resembles a white-feathered chicken with a round-shaped head, two large dark eyes, a tiny orange beak, and thick cheeks. Their wings are medium-sized compared to their bodies, which are smaller than their heads, and they possess soft orange feet with three toes on each foot. Additional features include a rather large comb and a small wattle under their beaks, which can be either red or black.
When reality was reset as a result of Operation: Clean Sweep, countless Cluckies were captured by Dr. Eggman to be used as power sources for his Badniks or be trapped in Prison Eggs. Several Cluckies were freed by Sonic and his allies during their hunt for Eggman.
- Note: From this point, the Cluckies' history continues from their new life in the altered timeline.