Quote Originally Posted by cavscout View Post
Todd, I seem to recall that one of those colors has a pretty strong association to one of the regiments (maybe the red to the Black Watch?) Please correct me if I'm wrong on that.
There are all kinds of associations between hackle colour and regiment, because they aren't limited to kilted highland regiments, or even regiments where only the pipers wear kilts (i.e. Irish regiments), but are also worn by entirely trousered not-remotely-celtic regiments.

You can even get Irish tricolour hackles, which I don't think any military unit of the Irish Defence Forces actually wears, so I assume they are worn by civilians (albeit possibly who are in a band).