# Carduelis spinus

> species of bird

**Wikidata**: [Q168881](https://www.wikidata.org/wiki/Q168881)  
**Source**: https://4ort.xyz/entity/carduelis-spinus


## References

1. Integrated Taxonomic Information System. 1998
2. [Source](https://www.threatenedtaxa.org/index.php/JoTT/article/view/642/1125)
3. Freebase Data Dumps. 2013
4. [BioLib](https://www.biolib.cz/cz/taxon/id9007/)
5. Global Biodiversity Information Facility
6. World Register of Marine Species
7. Gwefan Llên Natur
8. IUCN Red List
9. Catalogue of Life in Taiwan
10. [Belgian Species List](http://species.be/en/4522)
11. [Finnish Biodiversity Information Facility](https://laji.fi/taxon/MX.36287/taxonomy)
12. Fauna Europaea
13. TAXREF v9.0
14. TAXREF v10.0
15. TAXREF v11.0
16. Interim Register of Marine and Nonmarine Genera
17. European Nature Information System
18. Belgian Species List
19. Open Tree of Life reference taxonomy version 3.6
20. Out of the dark: 350 million years of conservatism and evolution in diel activity patterns in vertebrates
21. Naturbasen