# Catharacta skua

> species of bird

**Wikidata**: [Q28125238](https://www.wikidata.org/wiki/Q28125238)  
**Source**: https://4ort.xyz/entity/catharacta-skua


## References

1. HBW and BirdLife Taxonomic Checklist v2
2. HBW and BirdLife Taxonomic Checklist v3
3. HBW and BirdLife Taxonomic Checklist v4
4. HBW and BirdLife Taxonomic Checklist v5
5. HBW and BirdLife Taxonomic Checklist v6
6. HBW and BirdLife Taxonomic Checklist v7
7. The IUCN Red List of Threatened Species 2021.3
8. IUCN Red List
9. Integrated Taxonomic Information System
10. Global Biodiversity Information Facility
11. World Register of Marine Species
12. [Finnish Biodiversity Information Facility](https://laji.fi/taxon/MX.27724/taxonomy)
13. New Zealand Organisms Register
14. Fauna Europaea
15. Interim Register of Marine and Nonmarine Genera
16. European Nature Information System
17. AnimalBase