# Cygnus columbianus bewickii

> subspecies of bird

**Wikidata**: [Q244325](https://www.wikidata.org/wiki/Q244325)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Bewick’s_swan)  
**Source**: https://4ort.xyz/entity/cygnus-columbianus-bewickii


## References

1. IOC World Bird List Version 6.3
2. IOC World Bird List Version 7.2
3. IOC World Bird List Version 6.4
4. IOC World Bird List Version 7.1
5. IOC World Bird List Version 7.3
6. IOC World Bird List Version 8.1
7. eBird Taxonomy v2018
8. IOC World Bird List Version 8.2
9. IOC World Bird List Version 9.1
10. IOC World Bird List Version 9.2
11. IOC World Bird List Version 10.1
12. IOC World Bird List Version 10.2
13. IOC World Bird List Version 11.1
14. IOC World Bird List Version 11.2
15. IOC World Bird List Version 12.1
16. IOC World Bird List Version 12.2
17. IOC World Bird List Version 13.1
18. [Birds of the World](https://birdsoftheworld.org/bow/key-to-scientific-names/search?q=bewickii)
19. Integrated Taxonomic Information System
20. Fossilworks
21. Global Biodiversity Information Facility
22. [Source](https://bou.org.uk/wp-content/uploads/2025/01/BOU_British_List_10th-and-57th_IOC14_2_Cat-F.pdf)
23. Gwefan Llên Natur
24. Catalogue of Life in Taiwan
25. TAXREF v9.0
26. TAXREF v10.0
27. TAXREF v11.0
28. TAXREF v12.0
29. TAXREF v13.0
30. TAXREF v14.0
31. TAXREF v15.0
32. TAXREF v16.0
33. National Biodiversity Network
34. eBird Taxonomy v2019
35. CalPhotos