In 2005, I got some really nice recordings of Sharp-tailed Grouse displaying in Solon Springs, Wisconsin, at the lekking area managed by Friends of the Bird Sanctuary. I posted some of my recordings:
Sharp-tailed Grouse: about one minute First you hear their calls, and then they start dancing.
Sharp-tailed Grouse: 26 seconds Lots of dancing, but short.
Sharp-tailed Grouse: 5 minutes 48 seconds You can hear a distant train as well as over five minutes of unadulterated Sharp-tailed Grouse displays.