Lost blue budgie near Loring Park, Minneapolis

I'm posting because I lost my electric-blue budgie yesterday around 3pm near Loring Park in Minneapolis. He's a tiny parakeet, maybe 4 inches tall, with a bright yellow patch on his forehead and a small white ring around his neck. The most identifying detail is a tiny red leg band stamped with 'C3' on his right leg, and he wears a dull silver bell on a thin string that sometimes jingles when he hops. He’s very friendly but can be skittish with strangers. He’s the world to me—this bird is a gift from my sister, and I really need him back.