As a teenager,there were many grouse coverts here in central Massachusetts. My friends and I did a lot of grouse hunting after school was out. We were pretty good in being able to get a couple on every other outting.
Our habitat has shrunk and changed to a more mature wood. In addition, there are more predators around which take their toll.
I have hunted ruffed grouse in northern New England a bit. Especially Maine. I actually shot most of my grouse road hunting in the large forests with a .22 lr handgun or my TC Contender handgun with a .410 barrel on it.
I do have a funny grouse story. Last fall, the little farm that Dad and I hunted had a young male ruffed grouse living there. It would follow us to our deer stands like a little dog and would fly up to the branches of his stand. It would purr in his ear and at times land on his head or shoulder. We have some pictures of the little grouse but alas, the farmer's dog killed it.