Yellow-green budgie with red leg band

I lost my yellow-green budgie yesterday around 4:15pm. He's from PetSmart, about 6 inches long, with a bright green body and a yellow head; there’s a bit of feather wear on the tail from last week’s wind. We named him Sunny, and he’s been a real bright spot since we got him last summer. Last seen near the Brainerd Public Library on 2nd Street by the walking bridge over the Mississippi. He wears a red leg band and has a tiny blue patch on his left wing, and he responds to a whistle when I call his name. This bird is special to us—please reach out if you spot him; we’re really hoping to bring him home.