Human: Please generate a short description of a foreboding setting outside a wilderness cave with unsteady ground. The male grouse struts proudly back and forth at the far end of the trail. Assistant: 
A male grouse, in full peacock-like display, struts proudly back and forth at the far end of the trail. Suddenly he stops, cups his wings behind him and then begins to slowly beat his wings. As he picks up the pace, the sound goes from a mute pop to the booming of a kettledrum. There is a brief rustling in the grass and out pops a hen.