Nailed 6 grouse in Eastern Washington during the opener last weekend. Had so much fun, my 10yr old and I are going back this weekend. Rather steep area, checkout the pic where we use my "grouse rope" to get back up the bank after retrieveing a bird.
Birds were spread out, not in large groups. Once the weather cools, you can expect to see larger groups of birds as they gather in areas out of the wind with a bit of sun on the hills. I cannot wait for the freeze!