Please read I need some advise. I have a gorgeous 1year Columbian Blacktail,Rosalie who at 7am yesterday laid hee usual egg.however at 7:45 last night she laid another. this one however had a very thin shell that when picked up collapsed. it was normal inside yolk white etc.Rosalie seemed fine and went to bed about an hour later. this morning she is fill of energy and has just laid another egg. Perfectly normal fully developed. should I be worried as I've never heard aboutthis?thanks