Gray cockatiel with yellow crest lost downtown Hagerstown

I lost my gray cockatiel with a bright yellow crest yesterday around 3pm near the Maryland Theatre on West Washington Street in downtown Hagerstown. It’s about the size of a parakeet, with blue-grey wings, a vivid yellow crest, and orange cheeks; tail feathers are a soft blue-grey. It wears a silver leg band engraved 'A12-63' and has a tiny chipped beak from a previous toy. He responds to the name 'Polly' and often sings little tunes when he hears our voices. This bird is my daughter’s favorite and a gift from my late grandmother, so we’re really hoping to find him soon.