Muff The muff of a Frillback will vary, however, 2 to 3 inches is a desirable length.
Frill The curl of a Frillback covers its entire wing shield. No areas should be uncovered. The last row of curls spans the entire length of the wing. Frills form a distinct ringlet curl at the end. The bottom of the muff is also frilled. Tail and flight feathers have a distinct wrinkle.