The past 2 days, now that I am back to work, the ladies when I let them out, and as I am walking up to the coop to let them out, they are very loud. I mean a loud long squuuaaawwwkkkkkkkk! Then when they run out to the outdoor run, they do it for a few more minutes? What are they doing? They are 5 NHR, and 2 leghorns. THey are about 15/16 weeks old.