Total opposite in VT - Grouse populations are down. (West Nile was discovered in every county in VT save for one). My flushes are probably half of what they have been over the previous 20 years. I've been exploring new areas to hunt as a result - its still slow going. Could be cyclical, but we're definitely in the down side over the last two seasons.
Delta is the upland Mecca of Alaska and our ruffed grouse populations are near zero, sharptails are down and spruce hens are the lowest ever. A bad spring last year and excessive limits of 15 ruffed grouse haven't helped. Books, magazine articles and TV hunting shows have driven hunter's expectations to extremes: " bag 3 species of grouse and two of ptarmigan all in one day"
Many of the ground sluicers that I meet, don't know what specie of grouse they've just shot.