# Cygnus

> genus of birds

**Wikidata**: [Q29564928](https://www.wikidata.org/wiki/Q29564928)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Swan)  
**Source**: https://4ort.xyz/entity/swan


## References

1. IOC World Bird List Version 7.2
2. IOC World Bird List Version 6.4
3. IOC World Bird List Version 7.1
4. IOC World Bird List Version 7.3
5. IOC World Bird List Version 6.3
6. IOC World Bird List Version 8.1
7. IOC World Bird List Version 8.2
8. IOC World Bird List Version 9.1
9. IOC World Bird List Version 9.2
10. IOC World Bird List Version 10.1
11. IOC World Bird List Version 10.2
12. IOC World Bird List Version 11.1
13. IOC World Bird List Version 11.2
14. IOC World Bird List Version 12.1
15. IOC World Bird List Version 12.2
16. IOC World Bird List Version 13.1
17. [Source](https://lingualibre.org/wiki/Q829002)
18. Taxonomy database of the U.S. National Center for Biotechnology Information
19. Integrated Taxonomic Information System
20. World Register of Marine Species
21. Dyntaxa
22. National Biodiversity Network
23. Nederlands Soortenregister
24. Barcode of Life Data Systems
25. Fauna Europaea
26. [Source](https://biodiversity.org.au/afd/taxa/Cygnus)
27. Belgian Species List
28. GF WordNet
29. Open Tree of Life reference taxonomy version 3.6