After playing for years, I finally saw ol Grizzleknot. Twice.
I was camping the Spires in SK and I hit Track.
After a brief battle (he was blue to me at 33) He dropped and I got the Cloak of Leaves and of course, the bark. I checked the zone and ooc'ed that the bark was available because there were 2 shamans in the zone.
I decided a little travel was in order as the zone was starting to fill a little and a couple of hours later while I'm medding see what I thought was a treant. I clicked on it and it was another Grizzleknot.