My Neighbor’s Dog Killed My Livestock, What Can & Should I Do?

I'm wondering if anyone has experience this & what they did to resolve this. I had 2 ducks & 2 chickens. 1st duck died my the mouth of my neighbor's dog, 2nd duck disappeared without a trace. My rooster is now dead in my backyard no visible blood from where it's at but feathers are everywhere. Even in my neighbors yard. My hen is missing but she's orange & there's no orange feathers. What should I do? After their dog killed my 1st duck we went over to talk to them they said they would keep him on a leash. There's a small fence in between us. Now there's feathers in their yard. Should I call animal control or what are my options I live in Virginia, USA