Though I don't know how old the eggs were when I first discovered them, that was on Aug 16th .... 18 days ago. According to most references I've found, the incubation period is around 17/18 days. Even assuming the eggs had only just been laid moments before I found them, we have to be right on the brink of a happy event. I'd like to report that I'm pacing up and down my perch like a pregnant dad, but one step in either direction isn't a very recommendable move.
Stand by for an announcement very soon.