# Sciurus aberti ferreus

> subspecies of squirrel

**Wikidata**: [Q20903399](https://www.wikidata.org/wiki/Q20903399)  
**Source**: https://4ort.xyz/entity/sciurus-aberti-ferreus


## References

1. Mammal Species of the World (Third edition)
2. Squirrels of the World
3. Taxonomy database of the U.S. National Center for Biotechnology Information
4. Integrated Taxonomic Information System
5. Global Biodiversity Information Facility
6. UMLS 2023