This morning when I let the girls out, one nest contained an egg less than an inch long. It was beautiful and absolutely perfect - no shell weirdness or funky shape. It seems a little heavy for its size, but it's too darn cute to crack open. These hens are Black Stars - their normal eggs range from large to jumbo. I don't know who laid it, but I do have one hen who has had the bald bulging butt problem https://www.backyardchickens.com/forum/viewtopic.php?id=120841&p=1 though it seems to be easing. Any ideas what's going on? They're slowing down on laying a bit (season?), and may be molting - they're not bare but I see more feathers around the past couple of weeks.