i had the same problems with some of my dogs, you can't beat it out of them, they are so hard headed, i've used the dead chicken to beat the crap out of my shepherd, it didn't work, i don't tolerate chicken killing very well, the dogs i have now are in a fenced yard, that helps unless i have the occasional chicken commit suicide and jump in the pen, i had a hen do that and the dachshunds skinned her alive, i had to do her in, i wasn't the least happy, my pug/boston mix stood clear at the other side of the yard watching the others saying "oh just wait til dad gets here!" i haven't had a problem in awhile thank God, i did have a young chick come in the dog yard, my dachshund rudy came running in the house with it in his mouth all proud, if he would have just moved like that in the show ring, well he did get his championship minus the chicken in his mouth LOL!
good luck dog proofing your coop
