But look at the clan mark on this arrow. It's the sign of the dog.
5 seconds sound clip from the She Wore a Yellow Ribbon movie soundboard.
You can hear this line at 00:08:48.246 in the Blu-ray version of the movie.
Quote context
[...]
- No, and it's not Comanche nor Arapahos either, with those color bands.
- Sir?
- All right, Sergeant, put in your two cents' worth.
- Sir, these arrows with the yellow, white and red bands are a sign of the Southern Cheyenne.
- I've seen Bannocks and Snakes use the same colors.
- But look at the clan mark on this arrow. It's the sign of the dog.
- That arrow came from the bow of a Southern Cheyenne Dog Soldier.
- Well, what in blazes would the Cheyennes be doing this far south, Sergeant?
- That ain't my department, sir.
[...]