I have 2 black sexlinks that we got for free when we moved into our new house, and they kind of freaked out when we brought our flock of 30 other girls to live in *their* coop. They were both previously laying beautiful large eggs, but the previous owners reported that one of them frequently laid fart eggs. One of them hasn't laid an egg since the day we moved in, and the other stopped laying after we'd been here about a week. It has been over a month now and things have settled down and the pecking order seems to be pretty well established, so I've been waiting and waiting for them to start laying again, but nada. Here's the part that seems weird to me- One of them sings her egg song about every other day, and she even goes into the nest boxes and settles in as though she's going to lay an egg, but then just gets up and leaves after about 30 minutes and no eggs. I keep getting excited and then disappointed! Is this a normal stress thing, or does it sound like she's a defective layer?