CDC Blue Wing Olive

Pattern: 

Hook: Dry Fly (14 or 16)
Thread: Olive
Tail: Dark Dun Ultra Fibbets
Body: Olive Super Fine Dubbin
Wing: Dark Dun CDC  

Instructions:

1. Begin thread at eye and wind back to tail tie in.  Do not trim tag end of thread!
2. Measure fibbets (slightly longer than body) and tie in with two pinch wraps.
3. Bring tag end up and through fibbets and pull forward along shank to split tail.
4. Tie in tag end with fibbets and trim.
5. Advance thread to wing position.
6. Tie in two CDC feathers, first on far side, second on near side.
7. Trim butts and tie down, bring thread to tail.
8. Create tapered dubbin noodle and wrap body.
9. Using dubbin noodle, wrap in front of wings to lift them to vertical, then use dubbin to split wings with x-wraps.  
10. Neaten up head with thread wraps.
11. Whip finish & cement.

For an excellent demonstration, check out Jim Misiura's video.  The fly is billed as a dun, but the profile looks rather spinner-like to me so I'll be fishing both ways.

CDC BWOs from different angles: