Green parakeet with yellow head, blue tail

I lost my small green parakeet yesterday around 3pm near the Bricktown Canal along Reno Ave between 1st and 2nd Streets in Oklahoma City. It's palm-sized with a bright yellow head, green body, and blue tail feathers, and it wears a blue leg band with the number 27. I can also see a faint white ring around its eyes. This bird is a gift from my mom and means a lot to me, so I’m really worried and would appreciate any sighting or leads.