One of my Welsh Harlequin ducks, Selah, has been laying continuously since July of 2019. She has laid an egg a day since that date and I am concerned that all that egg-laying, without rest, is not good for her body. I've noticed her egg shells are getting thinner and thinner, despite that fact that she is really good at shoveling in her oyster shell calcium. All her sisters have molted and stopped laying as soon as they molted. She hasn't molted and she's still going at it. Is there any way that I can get her to take a break. She's healthy and active, but I think I'll face problems down the line if she does not take a break.