Donna, let us know if they nest, please! We have bluebirds that come to feeders and sit in our trees, but so far they haven't nested. We are thinking of moving the nest boxes--perhaps they just don't like the view from the current locations.
I hope they decide to set up home in your beautiful bird house. What delightful little birds they are. :-D
........ Donna, this old fellow (meaning me) would be very interested to know if any of the Bluebirds use your condo, especially if more than one pair take up residence.. My curiosity comes from having read somewhere that Bluebirds were very territorial and each pair need quite a bit of space because their food source is the insects in the vegetation.. Thanks in advance for any updates on your Bluebird population.. Hank