Found these while checking Silverbird's website (actually both Running Fox and Walter Smith are introduced as his supporters)
http://www.bobbyrunningfox.com/index.htm
http://www.spiritual-retreat.info/Hoop-Drum-Workshop.php
http://www.hotfrog.com.au/Companies/Eyesberg-Enterprises/Prayer-Arrow-and-Sweat-Lodge-Purification-Ceremony-68037
Camilla