Green parakeet with yellow tail, lost near Capitol Park

I lost my green parakeet yesterday around 3pm near Capitol Park in downtown Sacramento. It's small, about 5 inches, with iridescent emerald feathers and a bright yellow tail, and a silver leg band on the left leg engraved 'SAC-12'. I last saw it perched on a low branch near the fountain by the State Capitol and it flew toward L Street past the coffee kiosk outside Tim's Café on 10th. This bird is really important to me—it was a gift from my grandmother and I’m worried sick about it.