On Mother's Day my DS asked what I wanted - and my reply was a Mountain Bluebird house. We'd been researching them since the one showed up on Easter. He got it done, we put it up and within hours a couple was moving in.
One afternoon DS came running in the house, telling me to come with him and grab my camera. I couldn't figure out what was going on - but when I got outside there was a male bluebird on the grass. My Yorkie, Pistol, almost got him. He didn't fly but just stayed a few steps ahead of the dog. So....we thought maybe he was injured. I caught him - wings were okay, legs were okay; no visible problems. So I put him into the house, everything I could find on them said they didn't mind humans - we sure hoped not! When DS came home from work that night - he was gone. The next day - a nest was started! I was so excited!
Now this couple have 4 little eggs in the nest. I always make sure to announce myself - usually Momma flys out - I check the nest while they stay very close by.