My Lab Scarlett is a well behaved and loving part of our family......but she is a chicken killer. I have built a new large chicken coop, poured concrete around the entire chain link fence run, put up an underground fence system and a hot tape goat fence. She killed all my silkies and cochins......again this morning! Does anyone have a suggestion on how to deter her or keep her out???? I can not go through another massacre again, it is also not fair to submit the poor chickens to this kind of torture.