Olive Dun

The Olive Dun is a classic dry fly that imitates adult olive mayflies (Baetis species), a key food source for trout and grayling. It is especially effective during olive hatches on rivers and stillwaters, where its natural silhouette and olive coloration closely resemble freshly emerged duns.

Hook: Standard dry fly hook, sizes #12–#18

Materials:

• Thread: Olive
• Tail: Olive or medium dun cock hackle fibers
• Body: Olive floss, silk, or dubbed olive fur
• Wing: Grey or medium dun hen or duck quill slips
• Hackle: Olive or medium dun cock hackle