Ed,
My wife is from souther Vermont, I talked to her cousin couple weeks back he said the grouse is down but you can always fly a few walking down the old logging roads. He mentioned a lot of grouse hunters from mass has been putting the hurt to the population of grouse. nY has a good population still.  Wisconsin  is still a hot spot along with upper Michigan. My hunting buddies grind them up every year.  I have read that Minnesota has a good hunting for grouse.  I'll be in Canada in a couple weeks for salmon and grouse up on the grand rivier as a guest of the tribe. So as with dove I am counting the weeks till I am in Canada.  More to come.