We bought 2 EEs about 4 weeks ago and they were doing great. we did have some concerns about the yellow one being a rooster because of how loud and (slightly) aggressive she is. There was no real problem, but recently the brown one has been sleeping a lot and making a very loud distress warble. I’m very worried that the yellow chick did something to her that isn’t noticeable. Since there are only 2 chicks, I am scared that one will die and leave the other alone. Is this just a kind of pecking order or should we be concerned?