Hoary marmot
Marmota caligata (Eschscholtz, 1829)
The hoary marmot (Marmota caligata) is a species in the family Sciuridae, order Rodentia. Recorded adults weigh 4.3 kg to 7.23 kg and live up to 12.1 years. Its IUCN Red List status is Least Concern.

Quick facts about the hoary marmot
- Weight
- 4.3 kg – 7.23 kgsrc for Weight
- Length
- Not recorded
- Lifespan
- 12.1 yearssrc for Lifespan
- Diet
- Herbivoresrc for Diet
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 25 days – 30 dayssrc for Gestation
- Young per litter or clutch
- 4.6src for Young per litter or clutch
- Age at maturity
- 2.38 yearssrc for Age at maturity
- Litters or clutches a year
- 0.5src for Litters or clutches a year
- Active
- By day (diurnal)src for Active
- Lifestyle
- Terrestrialsrc for Lifestyle
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the hoary marmot live?
Not recorded
What is the hoary marmot?
The hoary marmot (Marmota caligata) is a species of marmot that inhabits the mountains of northwest North America. Hoary marmots live near the tree line on slopes with grasses and forbs to eat and rocky areas for cover.
It is the largest North American ground squirrel and is often nicknamed "the whistler" for its high-pitched warning issued to alert other members of the colony to possible danger. The animals are sometimes called "whistle pigs". Whistler, British Columbia, originally London Mountain because of its heavy fogs and rain, was renamed after these animals to help make it more marketable as a resort. The closest relatives of the species are the yellow-bellied, Olympic, and Vancouver Island marmots, although the exact relationships are unclear.
From the Wikipedia article “Hoary marmot” (en.wikipedia.org/w/index.php?title=Hoary_marmot&oldid=1375360845), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the hoary marmot endangered?
The hoary marmot is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species. What the categories mean.
How is the hoary marmot classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderRodentia
- familySciuridae
- genusMarmota
- SpeciesMarmota caligata (Eschscholtz, 1829)
Synonyms Arctomys caligata, Marmotta caligata
Other names and names in other languages (20)
- Montague island hoary marmotEnglish
- Montague island hoary marmotEnglish
- svišť brýlovýCzech
- Nordamerikansk alpemurmeldyrDanish
- Eisgraues MurmeltierGerman
- Grauhaariges MurmeltierGerman
- Γκρίζα ΜαρμόταGreek
- marmota canosaSpanish
- harmaamurmeliFinnish
- marmotte des RocheusesFrench
- Marmotta delle Montagne RoccioseItalian
- シラガマーモットJapanese
- GråmurmeldyrNorwegian Bokmål
- Grijze MarmotDutch
- świstak siwyPolish
- Marmota-das-RochosasPortuguese
- Седой сурокRussian
- Alaska Körfezi MarmotuTurkish
- Бабак сивийUkrainian
- 蒙塔古島褐旱獺Chinese
Relatives of the hoary marmot
Other species in the same genus Marmota.

Alpine marmot
Marmota marmota

Groundhog
Marmota monax

Bobak marmot
Marmota bobak

Himalayan marmot
Marmota himalayana

Tarbagan marmot
Marmota sibirica

Yellow-bellied marmot
Marmota flaviventris
CompareHoary marmot vs Alpine marmotHoary marmot vs GroundhogHoary marmot vs Bobak marmotHoary marmot vs Himalayan marmot
Common questions
Answered only where our data holds the answer.
How big is the hoary marmot?
An adult hoary marmot weighs 4.3 kg – 7.23 kg, according to values recorded on Wikidata.
Is the hoary marmot endangered?
The hoary marmot is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
How long does the hoary marmot live?
The hoary marmot has a recorded lifespan of 12.1 years.
How long is the hoary marmot pregnant?
The recorded gestation period is 25 days – 30 days.
What kind of animal is the hoary marmot?
The hoary marmot (Marmota caligata) belongs to the family Sciuridae in the order Rodentia.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- 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).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Hoary marmot (Marmota caligata). Retrieved from https://creaturedata.com/animals/hoary-marmot
“Hoary marmot (Marmota caligata).” CreatureData, 2026, https://creaturedata.com/animals/hoary-marmot.
@misc{hoary_marmot_2026,
title = {Hoary marmot (Marmota caligata)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/hoary-marmot},
note = {Data as of 2026-11-11}
}