I haven't, but I just came across a critique of the character, Wounded Bird, at the Drawing on Indians blog where blogger Stephen Bridenstine says "Wounded Bird draws his inspiration directly from the scores of Indian depictions in countless Hollywood Westerns."
The image here is from Bridenstine's site. See the bone choker? (Imagine me groaning.) Bone chokers have become one of the things anyone (and anything) who wants to be marked as "Indian" wears (or is shown wearing.)
Johnny Depp does the voice for Rango in that film. Depp has gotten a lot of press lately because he's playing the part of Tonto (the Lone Ranger's Indian sidekick) in a remake of the Lone Ranger. Depp says he's seen stereotypical portrayals of American Indians in films and plans to do something different in his portrayal. I wonder what it'll be? Depp was in Dead Man with Gary Farmer. I wonder if he learned anything from Gary? For those who don't know Gary's work, watch him in Smoke Signals.
