Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by origin]
6. biological material
7. animal material
8. keratinous material
9. feather (material)

Additional parents:

1. top of the aat hierarchies
2. Materials Facet
3. Materials
4. materials
5. materials by origin
6. biological material
7. animal material
8. keratinous material
9. hair and hair components as materials
10. hair
11. hair by form as material

Anotations

Scope note:

Material derived from the hard, hollow shaft of a feather that attaches into the skin of the bird. The quill portion of the bird feather does not have any lateral branches; quills from ducks, geese, eagles, swans, and other large birds have been used as tips for pens and as ferrules for artists' brushes.