Badgers are evil animals and will eat a ewe alive if shes in difficulty.
I have seen the resutls and I have seen them attacking a ewe with her head stuck in a fence.
Best thing is good fencing, make sure any holes are filled in quick, and ideally the most powerful elexctric fence single line around the woods you can find.
Badgers are the dementors of the animal world, Ive seen one badger get into a lambing shed before and it just ate brains, dozens of lambs just for brains. They are evil, wicked creatures.
Fence
Fence
Fence
Fence
Speak to your neighbours.