Black and white border collie mix, blue collar

I lost my black and white border collie mix yesterday around 5:15pm near the Ross Park Zoo in Binghamton. He's about 40 pounds, medium build, with a white star-shaped patch on his chest and a slightly longer left ear that sticks up when he's curious. He wears a bright blue nylon collar with a small round red tag, and he has a gentle wag when he recognizes a familiar voice. I adopted him last year, so this is really hard on me; he's my best friend and has sentimental value beyond words. If you spot him wandering near the carousel at Ross Park or along Chenango Street, please text me. I’m trying not to panic.