I noticed there are some holes in the wooden columns of my house's porch, once a while I see bees in and out of those holes (shouldn't they be living in a hive?).

Do you think this might pose a problem to the columns, should I do something about it?

[![enter image description here](https://i.stack.imgur.com/i119n.png)](https://i.stack.imgur.com/i119n.png)

[![enter image description here](https://i.stack.imgur.com/AXkZn.png)](https://i.stack.imgur.com/AXkZn.png)