- Down Cluster: Down in a cluster shape with down fibers emanating from the down core.
- Nestling Down: Immature down in an umbrella shape.
- Judgment Reference: 1. Obvious quill shafts, inconspicuous short quill. 2. Three-dimensional shape, barbs are down fibers.
- Plumule Down: Down in a feather shape, fluffy filament barbs grow on soft quill shafts.
- Damaged Down: Down having two or few more fibers emanating from the down core.
