Best not yell at Cynthia. She didn't do anything wrong.
She knows dogs can be good with poultry, but if you are not the owner of the dog and it is on your property, you are in the right to take the dog down. I have read far too many stories of losses because of stray dogs.
My corgi is FABULOUS with my chickens. Right from the get-go. He protects them to the best of his ability, but he is my dog. He is around my chickens. The dog that came onto my property is around a bunch of red hens all day, but he is vicious towards OUR birds. I can't imagine Koda being that way, but I would take responsibility of my dog if it was in the opposite situation.
I would definitely not lay blame on the dog and say it wasn't my fault. I would apologize profusely and offer compensation and assurance that it would never happen again. I would RUN after my dog who got lose. We have done so. They run onto the road (stupid dogs) and Susan (finace) has even done so in her underwear. We do our very best to keep our dogs in our property. Thankfully the only other place they have ventured was the road. They have a death wish.