Guys what is the problem with my hive. I took off the jar of my feeder this morning to refill it and there were wasp and Yellow Jackets under there getting a free meal. The only way they can get to it is through the 3/4" hole in the front of the hive then go down to the bottom board and eat. Aren't my bees suppose to keep them out? My bees and the hive seem to be fine but this seems strange.