Earlier this year, "Bluebird Man" Stiles Thomas installed an Eastern Bluebird nesting box for a friend in Gardiner, N.Y. (near New Paltz).

Now that nesting season is over, the owner removed the the nest below.

We know that bluebirds nested there (we saw them flying in and out with food), but we wonder if there were any other tenants. Anyonew have any theories?