I recently joined the Pennsylvania blue bird society. (Cost was 10 dollars, and I got a really cool book and birdhouse for joining.) I was never really into "birding" or whatever the fancy term is. But I have put up dozens of birdhouses over the years. This past year, we had several eastern bluebird nests going. Anyone else belong, or do bird stuff? I have a beekeeper not to far away that is certified to keep hawks, but I will not be getting near anything like that. I think the kids will get a kick out of monitoring, reporting, and seeing the nests as we report our bluebird boxes.