Blue cockatiel with orange cheeks, lost near Hicksville Library

I lost my medium-sized cockatiel yesterday around 3pm near the Hicksville Library on Jerusalem Ave, Long Island. The bird is mostly blue-gray with a bright blue tail and orange cheeks, and it has a small yellow patch on its chest. It wears a red plastic leg band with the numbers 12-A2 and can be a bit shy, but it responds to whistles and familiar tunes. This bird is a family member and was a gift from my grandmother, so it has sentimental value; I’m really worried and would be grateful for any sightings or help bringing him back.