Jay Nicholas demonstrates another great technique on how to tie in a Guinea hackle to form a collar for salmon and steelhead flies. This is not complicated but can give first time users a bundle of frustration and this tutorial makes the process straight forward.
All of these methods are alternatives to using saddle hackles, neck hackles, or Schlappen to form collars on flies. Although features as for use on salmon and steelhead flies, these materials are great on saltwater, pike, musky, and bass flies too.
Key materials featured in this fly tying instruction video