Fishers were quite overpopulated here up until 5-7 years ago, it was not uncommon for most everyone who sent in for trapping tags to get 2 fisher tags per year and it wasn't uncommon to see them cross the road a couple times per year, we used to see them at least once per deer season in our...
Aren't ermin just weasels with their white winter fur? That's what an ermin is around here, fisher are way larger 4-5ft+ in length, like a giant viscious weasel
A dog will only repel a fisher if the dog is actively chasing it, then the fisher will most likely tree like a coon or bear, I highly doubt walking the dog to spread scent will do any good. You should definitely keep an eye out as the fisher is a dangerous predator to all of your animals but it...