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)

Anotations

Scope note:

Long, flexible, iridescent green tail plumes of the resplendant quetzal (Pharomachrus mocinno). These feathers held extremely high value in Nahua societies and were used in luxurious costumes, including back devices and headdresses.