Hot Head Leech These popular leeches are tied with "Canadian Series" Mohair in one of these great colors. We use a "Hot Head" to make an effective leech pattern or simply as an attractor. Swing these or use a dead drift. Both are deadly. Canadian Series Mohair makes this a particularly buggy looking fly. Available Colors: Black, Canadian Brown, Canadian Brown & Pond Olive. Available in sizes # 08 - # 12