Have you ever sat on outside on your front or back porch and then you start to hear a slight humming sound and then what sounds like chewing or something like that? I have. On our front porch. Inside one of our columns I've heard them and it's very annoying. They are carpenter bees. So this is interesting, what sounds like chewing is actually the carpenter bees drilling holes!

So how can you get them to go away? Here is an article that you may find interesting and will give you the information on just that.