# Napothera crispifrons calcicola

> subspecies of bird

**Wikidata**: [Q21365369](https://www.wikidata.org/wiki/Q21365369)  
**Source**: https://4ort.xyz/entity/napothera-crispifrons-calcicola


## 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. 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. Integrated Taxonomic Information System
13. Encyclopedia of Life
14. Global Biodiversity Information Facility
15. Wikispecies
16. Avibase
17. Animal Diversity Web
18. Biodiversity Heritage Library
19. [Journal of the Washington Academy of Sciences](https://www.biodiversitylibrary.org/page/39699575)
20. [National Museum of Natural History](http://n2t.net/ark:/65665/3d1f99e25-ca34-4cc9-ba7f-64d68790ae7d)
21. Catalogue of Life