These were found under a tarp that was covering a stack of boards in my front lawn. Now, I live in the Houston area, so the spot they were in was bound to get pretty hot during the day, although the area had a fair bit of condensation in the morning. I'm guessing they belong to some sort of snake (especially considering it'd be pretty difficult for a bird to work its way under there) I just have no idea what kind. The eggs have kind of a rough surface with a few blue splotches. Call me curious. Thanks.