We just are not seeing them around here these days.
30 years ago while on a backpack Stone sheep hunt in Northern BC , a porcupine severed one of the shoulder straps on my pack.
It was a walk in off the Alaska highway( roughly 20 miles). I repaired it with a bit of fishing line and a needle. It was seeking salt .
That 50 lb pack never rode well on my shoulders after my makeshift repair.
