Country folk call them "Fisher cats," and blame them for the decline of Ruffed Grouse populations in the Northeast (about which they are wrong. Grouse and Fishers coexisted for millennia. I blame the grouse population drops on fire suppression, habitat loss - and the dang Coyotes who would not be here had we not killed all of the wolves).
Fishers are large members of the weasel family (the Mustelidae - stoats, badgers, otters, martens, mink, weasels, wolverines) - kinda like mini-Wolverines.
With the return of woodlands and the decline of fur trapping, Fisher populations are rebounding in the northern US, especially in New England (same as with the Black Bear). They are one of the few animals that kills Porcupines.
I've never seen one in the wild, but I'd like to.
Do they scream? It seems to be an Old Wives' Tale. Info about Fishers here and here.
Have any of our readers seen one?