# Regulus bulgaricus

> species of bird

**Wikidata**: [Q7309717](https://www.wikidata.org/wiki/Q7309717)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Regulus_bulgaricus)  
**Source**: https://4ort.xyz/entity/regulus-bulgaricus


## References

1. [Source](https://nmnhs.com/historia-naturalis-bulgarica/pdfs/000136000101999.pdf)
2. Global Biodiversity Information Facility