We had that same problem with our neighbor's dogs months ago in the province. Our neighbor's farm was adjacent to ours. It happened at dawn when their dogs attacked and killed one of our lambs. What we did was to talk to them first. Then they promised to tie those dogs ASAP.

The case was not to be. After two days, their dogs killed another lamb, this time was a newly born lamb. Plan B is on the GO. We shot their two dogs as soon as we saw them entering our farm again. Head shot with our 22 cal hunting rifle!

That really pissed them off. Hweheheh. Paki namin. . .