Lost small brown dog named Buddy with a white chest patch near Seneca Lake, Finger Lakes, NY.

I lost my small brown dog with a white patch on its chest around the water's edge by Seneca Lake in the Finger Lakes region. He seems to have wandered off while we were on a walk, and he loves to chase after birds. He does not have a collar, but he's very friendly and responds to the name 'Buddy'. I'm heartbroken and hope to find him soon.