Robust cottontail
Sylvilagus robustus (Bailey, 1905)
The robust cottontail (Sylvilagus robustus) is a species in the family Leporidae, order Lagomorpha. Recorded adults weigh about 1.21 kg and live up to 9 years. Its IUCN Red List status is Vulnerable.
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Quick facts about the robust cottontail
- Weight
- 1.21 kgsrc for Weight
- Length
- Not recorded
- Lifespan
- 9 yearssrc for Lifespan
- Diet
- Herbivoresrc for Diet
- Longest recorded lifespan
- 9.8 years
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 28.7 dayssrc for Gestation
- Young per litter or clutch
- 5src for Young per litter or clutch
- Age at maturity
- 4.04 monthssrc for Age at maturity
- Litters or clutches a year
- 3.9src for Litters or clutches a year
- Active
- At night (nocturnal)src for Active
- Lifestyle
- Terrestrialsrc for Lifestyle
- Conservation status
- Vulnerable (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the robust cottontail live?
Not recorded
What is the robust cottontail?
The Davis Mountains cottontail, robust cottontail or Holzner's cottontail (Sylvilagus holzneri) is a species of cottontail rabbit native to high-altitude regions of the southwestern United States and western Mexico.
From the Wikipedia article “Robust cottontail” (en.wikipedia.org/w/index.php?title=Robust_cottontail&oldid=1330112034), 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 robust cottontail endangered?
The robust cottontail is listed as Vulnerable on the IUCN Red List: it faces a high risk of extinction in the wild.
- 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 Vulnerable species.
How is the robust cottontail classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderLagomorpha
- familyLeporidae
- genusSylvilagus
- SpeciesSylvilagus robustus (Bailey, 1905)
Synonyms Lepus pinetis robustus, Sylvilagus floridanus robustus
Other names and names in other languages (3)
- Davis mountain cottontailEnglish
- Davis Mountains cottontailEnglish
- Holzner's cottontail rabbitEnglish
Relatives of the robust cottontail
Other species in the same genus Sylvilagus.
Eastern cottontail
Sylvilagus floridanus
Swamp rabbit
Sylvilagus aquaticus
Brush rabbit
Sylvilagus bachmani
Common tapeti
Sylvilagus brasiliensis
Desert cottontail
Sylvilagus audubonii
Mountain cottontail
Sylvilagus nuttallii
CompareRobust cottontail vs Eastern cottontailRobust cottontail vs Swamp rabbitRobust cottontail vs Brush rabbitRobust cottontail vs Common tapeti
Common questions
Answered only where our data holds the answer.
How big is the robust cottontail?
An adult robust cottontail weighs 1.21 kg, according to values recorded on Wikidata.
Is the robust cottontail endangered?
The robust cottontail is listed as Vulnerable on the IUCN Red List, meaning it faces a high risk of extinction in the wild.
How long does the robust cottontail live?
The robust cottontail has a recorded lifespan of 9 years.
How long is the robust cottontail pregnant?
The recorded gestation period is 28.7 days.
What kind of animal is the robust cottontail?
The robust cottontail (Sylvilagus robustus) belongs to the family Leporidae in the order Lagomorpha.
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). Robust cottontail (Sylvilagus robustus). Retrieved from https://creaturedata.com/animals/robust-cottontail
“Robust cottontail (Sylvilagus robustus).” CreatureData, 2026, https://creaturedata.com/animals/robust-cottontail.
@misc{robust_cottontail_2026,
title = {Robust cottontail (Sylvilagus robustus)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/robust-cottontail},
note = {Data as of 2026-11-11}
}