Probably at least attracted ants, the entrance the bees were using could be used now by a very large rat or raccoon. Once I exposed the colony I realized how badly rotten the wood was adjacent to the chimney.
I had my fix it all guy come by and give them an estimate to repair the rotten wood and re-flash the chimney, the way it should have been flashed the first time around.
Now when I see stains from honey drippings and mention that I can tell they've had bees in an area like this before and they tell me no, I leave. What else would they lie about?