Hotwire. Put a electric wire 6-12" off the bottom of the fence or coop and one on the top. That seems to be the best remedy for stray dog attacks, and most other predators (without wings). I have two wires areound the top and bottom og my day yard which surrounds my night pen. you can get small ones for around 30.00$ and connecters are like 5.00 a bag and you can get a 1/4 mile of wire for about 15.00$--- The only flaw of hotwire is small children. I use to hotwire on standoff connecters on the outside of my perimeter fence to keep stray dogs from testing my fence.
Sorry about your loss. We lost our first pet geese years ago because we only had 2 four foot fences and no night house.It was two raccoons working together. We lost chickens to possums climbing 2 fences and up a ramp into our coop. Now I hotwire for my ducks. I have read about lots of young bears now breaking into coops. Hot wire on the nose would deter them too!!
Sorry about your loss. We lost our first pet geese years ago because we only had 2 four foot fences and no night house.It was two raccoons working together. We lost chickens to possums climbing 2 fences and up a ramp into our coop. Now I hotwire for my ducks. I have read about lots of young bears now breaking into coops. Hot wire on the nose would deter them too!!