Green budgie with red leg band, lost near Union Street

I lost my green budgie yesterday around 5pm near the Bon Accord Centre on Union Street, Aberdeen, outside Costa Coffee. It's a small emerald-green bird with a yellow chest and a blue-tipped tail, about the size of a canary. It wears a red leg band with the code AB-7 and has a tiny white dot on the left wing that helps me tell him apart. This bird is my daughter's comfort after school, and it's really important to get him back—please help if you see him.