Emerald parakeet with orange beak and blue tail

I lost my emerald-green parakeet yesterday around 4pm near the Starbucks on Main Street in Lewiston, by the riverfront. He’s a small budgie, about 6 inches from beak to tail, with a bright orange beak, yellow chest patch, and a blue-tinted tail. He has a blue leg band on his left leg and a tiny white mark on his right wing, which are the best identifying details. I named him Pico, and he’s usually very chatty and responds to his whistle. This bird was a gift from my sister and holds a lot of sentimental value—I’m really worried I won’t see him again. If anyone found him, please message me with any information; I’d be forever grateful.