My 6wk and 5wk old chicks have been very happy in their coop (which is 8X16) and happy in their pen (which is 16X20). Plenty of room to play. But, today a big hawk was sitting on the ground outside of their pen. When I shouted at him, he flew up on the pen and then flew off. The whole pen has hardware cloth on it. We have it really secure. Of course the little chicks don't know that and the hawk scared them to death! They have not been outside today since that happened. Also, it is a little windy today and I think every leaf that blows across the top of the pen they think is that hawk. Will they snap out of it soon? I coaxed a few of them out with mealworms, but then they ran back inside.