Bluebird in my backyard

I am an amateur photographer and am taking point and shoot pictures. I thank you for all your comments. This is the best I can do with our local bluebird. Bluebirds have been flying in our backyard this spring and a pair seem to have nested. The Male is banging on our windows all day long. We think he thinks he is fighting a rival. We tried to distract him but he is persistent. He then goes to the house we have and sits and protects. The blue color in the sun is just breathtaking. Not a ***** picture, but an amazing event. Thank you