Hazel dormouse

Its diet category is nectarivore and its trophic level is herbivore. Gestation lasts 24 days, litters average 4.3 young with 1.5 litters per year, and sexual maturity comes at 340.6 days.

Weight

27.5 gsrc for Weight

Length

Not recorded

Lifespan

6 yearssrc for Lifespan

Diet

Nectarivoresrc for Diet

Main food

Not recorded

Habitat

woodlandsrc for Habitat

Gestation

24 dayssrc for Gestation

Young per litter or clutch

4.3src for Young per litter or clutch

Age at maturity

11 months – 11.4 monthssrc for Age at maturity

Litters or clutches a year

1.5src for Litters or clutches a year

Active

At night (nocturnal)src for Active

Lifestyle

Arborealsrc for Lifestyle

Conservation status

Least Concern (IUCN)src for Conservation status

Countries on record

Not recorded

Not recorded

The hazel dormouse is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.

1. LCLeast Concern
2. NTNear Threatened
3. VUVulnerable
4. ENEndangered
5. CRCritically Endangered
6. EWExtinct in the Wild
7. EXExtinct

Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species.

1. kingdomAnimalia
2. phylumChordata
3. classMammalia
4. orderRodentia
5. familyGliridae
6. genusMuscardinus
7. SpeciesMuscardinus avellanarius (Linnaeus, 1758)

Synonyms Mus avellanarius, Mus corilinum, Muscardinus avellanarius abanticus, Muscardinus avellanarius anglicus, Muscardinus avellanarius niveus, Muscardinus avellanarius pulcher, Muscardinus avellanarius zeus, Muscardinus pulcher, Muscardinus trapezius, Myoxus muscardinus, Myoxus speciosus

Catalogue of LifeWikipediaiNaturalistTAXREFWikidataIUCN Red List

CompareHazel dormouse vs Muscardinus vireti

• An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
  Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1
• Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
  Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
• Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
  Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence).
• EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
  Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1
• Wikidata · CC0 1.0 · 2026-11-11
  Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service).
• Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
  Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).

@misc{hazel_dormouse_2026,
  title = {Hazel dormouse (Muscardinus avellanarius)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/hazel-dormouse},
  note = {Data as of 2026-11-11}
}