Yesterday we saw 2 Eastern Bluebirds, today we saw 3. There are 2 males (I think) and 1 female. The more mature male was also examining the bird houses. As I said before, hopefully they will decide to build a nest in 1 of them.
In the first picture, that is supposed to be an “official” Bluebird house, but the male only seems to focus on the regular bird house in picture number 3.