I let the chickens out and they were all milling about on the bank behind their coop, when we heard a sound...Caw! Caw! Caw! And all my chickens froze up for a second, looked around and then made a mad dash for the coop...Then like 8 crows go wheeling in the air overhead cawing all the way. I am not sure that our chickens have anything to fear from crows, but they obviously weren't taking any chances. A lot of days my chickens seem to just hang out in their coop, and I am starting to feel like it is because of something they feel is out there that I don't know about...It's good though. I don't want my chickens to be eaten.