Alright. I have threee hens and every morning they do te strangest thing. (Occassionally in the afternoon as well) One will make this, just, amazingly LOUD sqwak noise! It sounds like shes being eaten by something but shes just sitting there normally. Its just so extremely LOUD. and the rest of the chickens will constantly cluck as she screams! What is this???!!! They have just begun laying and they are black ssex-links. Please explain!! Thank you!