Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. Living Organisms (hierarchy name)
4. living organisms (entities)
5. Eukaryota (domain)
6. Animalia (kingdom)
7. Chordata (phylum)
8. Vertebrata (subphylum)
9. Aves (class)
10. Anseriformes (order)
11. Anatidae (family)

Anotations

Scope note:

Members of the genus containing several living species and at least 10 extinct species of large waterfowl characterized by long-necks, heavy-bodies, large feet, graceful swimming style, and flying with slow wingbeats and with necks outstretched. Many swans are white. Swans are revered in many religions and cultures, especially Hinduism. They are common symbols in art around the world.