Chickmate, if you can discern that it was the neighbor's dog, contact them and tell them what happened. We did when it happened to us, and were reimbursed $10 for each bird killed. If they don't know their dogs are doing this, they need to know so they can take steps to correct the problem. If they still don't do anything, then go to plan B. Make sure you report it to animal control so you have a paper trail. The tricky part is, of course, determining that it was those dogs.