I have a German Shepherd and she never attacks the chickens. She will instinctively try to catch the birds when they freak out and take flight though.
As a puppy, she grabbed the leg of a chicken I was holding, breaking her pelvis. She thought it was play time.
Good chicken as she was she gave me a fresh egg daily fr five years, even when she could not scratch the ground or walk without using her wings as crutches!
So I say, just train your dog not to chase them, not to steal the eggs (mine did) and watch them.
As a puppy, she grabbed the leg of a chicken I was holding, breaking her pelvis. She thought it was play time.


So I say, just train your dog not to chase them, not to steal the eggs (mine did) and watch them.