I had a hive from a swarm we captured last spring. However it was a particularly cantankerous and aggressive hive. In September I replaced the queen, hoping to get them to be a tad gentler. A few days ago, I went into the hive to inspect and found they were rocking and rolling. The hive still seemed rather mean though. My question is, is it possible that the meaner bees are some that wintered over and are still alive, or did I buy an ornery bee-making queen?