I have two hives. One of them has the wood inner cover and the other is a homemade plexiglass inner cover. The wooden inner is the hive having the issue with the ants hanging out inside of it about the hive and in the "dummy box" enclosing the top feeder. The pexiglass(see through for undisturbed viewing) does not have any ants in it. I assume this might be because the ants see the bees moving in the hive and this scares them from inside the "dummy box" housing my syrup feeder. For the past week, I have been putting dried and unused coffee grounds, cinnamon sticks and handfuls of grass in the "dummy box" and around the outside of the hive, hoping that this advice would get rid of the ants. It seems as the number of ants have been reduced but there are still enough in there to cause me concern and frustration. I think the dumb things are able to get under my feeder also and really use up the sugar syrup. What can I do to get rid of the ants? By the way, they are the type of black ants that make the large mounds of dirt/sand and then live inside of the mound. Thanks, juzzerbee.