The conservative in this instance made the easy choice the evolutionary Darwin decision based on only fittest will survive. Removing a chicking eating dog from the reproduction pool of other fit animals who don't eat chickens.
The “hard” option was to take the time and care to properly train the dog. show Christian compassion, to save a dog that is not nearly as fit as others .
Honestly, I love animals myself and believe they are Gods gift to all of us. But for all the do gooders out there, at least be more honest with what this is all really about. Because there are real consequences even for acting compassionate.
Virtually any dog will eat chickens given the chance. If they are hungry enough, even those that prefer braised boneless chicken thighs cut into bite sized pieces will try for a chicken or rabbit if they can catch it. Some dogs will catch a squirrel or rabbit or chicken out of instinct and not have any idea what to do with it, being well fed and fairly civilized.
There exist a host of solutions to a dog in the hen house that don’t involve shooting a young healthy dog who doesn’t perform as you’d like.
They include:
Re-homing the dog to a family seeking a pet, not a hunting dog
Confining the dog to a nice enclosure with plenty of shelter from the elements ts, including too much sun and providing it with plenty of space to run, plenty of fresh, clean water and food and some human companionship
Providing the chickens with a more secure chicken yard that will keep out all of the predators, including those who can and will dig under a fence
Training your dog to ignore chickens and other livestock. This will require a lot of time and patience and experience and is not always effective for a dog with a high prey drive, which is an instinct that results from the genetic traits for seeking out and killing prey being amplified through generations of selective breeding. It may be the only solution is to permanently separate the dog and chickens. But it is not necessary to kill either.