Here is the fly pattern sheet for Fran Better’s Dark Haystack.

Haystack | www.johnkreft.com

Materials

 

Hook:

Mustad 9671, #10 – 18

Thread:

Hot orange 4/0 or 5/0

Tail:

Dark brownish deer hair

Body:

Dark brown muskrat or beaver

Wing:

Larger bunch of same color deer hair

This is the fly pattern as described by Mike Valla in his book entitled The Founding Flies.

I’ve used 140 denier Danville thread for the fly on a #12 Mustad 9671.