The fraternity of fly fishers
And Flyanglers like you!
The full collared hackle that wraps all the way around the fly is hen cape. If I was going to tye in a beard instead then I go with one of two materials, Schlappen is one and the other is Hen Saddle. I prefer Hen Saddle because I like the appearance is always easy to find and available and is just a tad larger to work with which in this case makes it easier.. I hope this answered your questions. Any other questions please ask and I will be glad to answer or provide and help that you may need.
Do you get the throat hackle from those hen capes?