I kind of doubt that a coon went after it because the nest is really deep down inside the house. There aren't a lot of coons around here that I have seen; I know they are around though. It is a bit puzzling, but from what I've heard about birds, I think the mom tossed it. It might have not been fertilized, that might also have been a possibility. At least the birdhouse is fixed up now so access is much better to raise the chicks (and fertilize eggs, lol).

Yup, I need to fix that moss I guess. There's always mañana, lol.