We have a solar operated automatic coop door that has been awesome. However since the time has been changing we forgot to reset it to close a little earlier. Unfortunately a Possum got in there and killed 2 of our hens! Evil big rats! They chew the heads off and leave em for dead. Looked like a scene right out of a horror movie! We fixed the door and secured the coop run but the remaining chickens haven't layed a single egg since. Is there anything we can do to help them start laying again? Thanks!