We have a "best nest" on our front porch. It was built last year by a pair of morning doves, who sat on it for quite a while, though we never saw any babies.
We were thrilled when mommy morning dove showed up this spring, took down the cobwebs and fixed up the nest once more. She didn't decide to use it however, and mommy robin is now back. We found a blue egg on the porch (sadly cracked), and when we held the camera up to take a peek for us, there is another blue egg in the nest! We wonder if perhaps now there are more than one, but we don't want to disturb her. Judging by the squawks outside while Matt was watering the front garden, she is not too far away! We hope we get some more babies in this nest...which certainly is welcome to stay on our front porch for a long time!