Just like a large grouse. I hang by a leg and start peeling off skin, including to second wing joint. (save wing bones for calls). Be sure and get the loose stuff off the breast,
A friend of mine hangs them by the neck for 24 or more hours with out gutting. He claims that the guts settle and draw out all the fluids from the body, including blood. He then guts and skins. I guess the English do some thing like that. He says that doesn't bother the taste.
Be carefull if scalding, to long in the hot water cooks surface, and skin. Dip in very hot water and try pulling feathers, re-dip until feathers come and skin doesn't.