You had a bluebird in your yard? My word, I would love to see one around here. I have only seen one in my life.
You both are very lucky,I have never seen a Blue bird in my live.
I really enjoy this thread it helps to relax me after a busy day.
I saw a couple of them when I was in Little Rock a couple of weeks ago in a tree right in front of where I parked. I tried to take a picture, but like I said, my camera stinks for that kind of picture. I read recently that their populations are on on the rise after becoming all but extinct in many parts of the country. I was thrilled to see one/two in my yard! I don't remember ever having them before either. I'm really gonna have to go and check out that book that I was talking about again. There was a lot of good information in it.
Anyway, I found this link you might find useful. I'm thinking about getting a nesting box for them if I can figure out where to place it. Don't give up. Im sure there are some in your area.