The Black Zulu is tied with a Red Wool tail, but a few patterns that I've seen have an Ibis sub tail tied in. This varies from the original pattern but they claim it to be more effective.
STEP 1 : Catch in the thread a little way from the hook eye.
STEP 2 : Take a length of Red wool and catch in and secure to the hook shank. Try and keep the body as uniform as possible. Don't run the waste floss too near the eye, this is where the hackle will be tied in and we don't want too much bulk. Hold the wool tail taught with your left hand and trim the tail to length using a single cut with a pair of scissors . Trim any waste wool from the body end and cover the ends with thread.
STEP 3 : Run the thread back down the hookshank securing in some fine oval silver tinsel on the way. Try and keep the tinsel on the underside of the hookshank when tying it in.
STEP 4 : At the position where the wool was tied in, start to dub some seals fur onto the thread. Try small amounts, if it doesn't cover the hookshank enough then you perform another winding over the top.
STEP 5 : Wind the seals fur up the hookshank and secure the thread a little way off the eye. Use a dubbing needle or piece of velcro to pull some of the seals fur fibres out which causes a nice buggy effect on the body.
STEP 6 : Catch in a Black cock hackle with barbs that are just over the width of the hook gape. Wind the hackle down the hookshank in open and even turns.
STEP 7 : When you reach the lower end of the hookshank ie. Where the tinsel is tied in. Take hold of the cock hackle with your left hand using finger and thumb or hackle pliers and hold the oval tinsel with your right hand. Keep the hackle taught horizontally and wind a rib with the tinsel back up the hookshank trapping the palmered hackle in as you go. It helps if you move the tinsel from side to side as you wind on the rib, this prevents having as many hackle fibres trapped under the winding. If you still find that too many hackle fibres are trapped , just use a dubbing needle to pick the trapped fibres out.
Once just short of the eye with the tinsel, tie off with thread and trim the waste tinsel.
STEP 8 : Now catch in another black cock hackle, this time with barbs slightly longer than those used for the palmered body. Perform two or 3 winds of the hackle and secure with thread. Trim any waste from the hackle.
STEP 9 : Take hold of the head hackle with your left hand and brush it back until only the thread is exposed. Create a neat head with the thread, whip finish and varnish.
Final : The resultant fly.