RE: grouse hunting
I'll start by saying that I'm no professional and I have only had one dog and he's a lab mutt. I noticed with him though that he learned just by being around other dogs. I trained him to a point until I found out he had hip and elbow displasia, and I gave up because he would never be what I wanted him to be. But just by training around a friends dog he picked up things. I have actually found myself in the field looking at him saying "where in the hell did you learn that". I don't know if it was the other dogs or I just got one smart pup, but I plan on doing some of the same things with the next dog.