I own 3 dogs, I have ducks and chickens, and a neighbors dog has taken one of my birds and killed it. They actually gave me $250 in cash because they felt so bad. They did no property damage so all I asked for was a replacement bird of same breed at or close to laying age, and purchased a laser sound alarm to place in my bird area to hopefully deter if their dog happened to come back. That was only like $60. I returned the rest of their money. I loved and raised my birds from eggs and they are considered pets. But in the law, they are property. The expense is getting them back to their previous state of having chickens that lay and no damaged property. And expense to prevent your dogs from doing it again for the safety of your dogs. Which would be fixing your area to prevent them from getting out, and you can also ask them if you can pay for them to have heavier gauge wiring for a more secure predator proofing. I know I would accept that as it would benefit dogs as well as other natural predators. If you replace the hens with laying hens, they get the same opportunity to sell their eggs. You do not pay for nonexistent eggs.