Budgie lost: green budgie with yellow head

I lost my little budgie yesterday around 3pm near the South Coast Boardwalk behind the Coral Street Market. He's a small green budgie with a bright yellow head, blue tail feathers, and a shiny silver leg band with the number A-421. He sits on my shoulder and chirps when I whistle, and he's got a tiny notch in the upper left wing feather that makes him easy to tell apart. If anyone finds him, I’d really appreciate getting him back.