Does your neighbor have any hens? Our roster did the same until we got him some hens. My stepson brought him home from a flea market last summer. We didn't know anything about chickens. He became a family pet and stayed home okay until Feb or so. Then he started wondering across the street to get with the neighbor's hens. So, we went back to the flea market and bought him 3 hens. That did the trick! He follows them around and guards them, and hasn't wondered off anymore.