Withered Chica used to be one of the performers in the first ever Freddy Fazbear's. However, after the location had closed down and the new Freddy Fazbear's Pizza from FNaF 2 was opened, Withered Chica was decommissioned and replaced by Toy Chica. After the events of FNaF 2, Withered Chica, along with the other withered, would go on to be refurbished into Chica from FNaF 1. Withered Chica would later reappear in The Freddy Fazbear Virtual Experience as a digital recreation of the original. - FNAF Wiki