be honest to be told, almost all of ponds in south shore has bullheads but you never seen them. Just try it out. you will be surprise how many bullheads are in there.
One pond that is my favorite but never seen them for almost ten years and nobody caught them nor heard anyone catching them at all. So I tried at last month, only managed to get several of them. It wasn't that small. Broke my personal best three times this year. So, bottom line is that those three times that I have been bested my personal record at three different ponds. Therefore, it is anywhere. some place are hard to find them and some place are easy to find.
one of them is at your "trout icon" spot. Just for your information. (I tend to use nightclawers.)