This is my effort at a Pale Morning Dun, size 16. The tail is a few barbs from a grizzly hackle feather. The body (abdomen) is a yellow goose biot. There is a notch in every individual biot near the butt section. That notch is your guide to whether your body will be smooth (as I did here) or ridged. (Notch up = ridged body) (Notch down = smooth body). The wing is a clump of CDC that I tied in and raised up into a vertical position with thread wraps around the base. I tied in one medium blue dun feather and wrapped it behind the CDC post and then wrapped the hackle forward, to the front.