Just an update, the bluebirds are still here, and they do go in the nextbox quite a bit. They are very aggressive with the sparrows now so I am hopeful they are here to lay eggs (if they haven't already). I have not looked in the nestbox in the last few days, but the last time I did look I could not tell if there were eggs or not. Just a lot of grass nest! Here are a couple pics I got of the pair when they were in the tree by my birdbath.
