Well, just to follow up on this, Rosie sad in the nest box yesterday morning and the day before but no egg. We've been putting basketballs in the nestboxes since another one has been sleeping in there, so this morning I went out there kind of late (8:30ish) and there was a perfect egg laying *splat* under the roost! It was a light brown egg with a healthy strong shell, just broken in 1/2 from the fall out of the roost. She's the only possible one who could've laid it in my estimation since we really aren't seeing the signs from the others yet (although, they are at 21 and 18 weeks). I'm crossing my fingers that she's getting back into the swing of things! I would LOVE to hear from someone who has had this weird egg with a tail experience before and how it resolved....if their hen went back to laying normally?