Western Gray Squirrel
Sciurus griseus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassMammalia (Mamífers)
- OrderRodentia (Rosegadors)
- FamilySciuridae (Squirrels)
- GenusSciurus (Tree Squirrels)
- SpeciesSciurus griseus (Western Gray Squirrel)
Closest Relatives at Yosemite National Park
Eastern Gray Squirrel
Sciurus carolinensis
California Ground Squirrel
Otospermophilus beecheyi
Yellow-bellied Marmot
Marmota flaviventris
Douglas' Squirrel
Tamiasciurus douglasii
Belding's Ground Squirrel
Urocitellus beldingi
Golden-mantled Ground Squirrel
Callospermophilus lateralis
Lodgepole Chipmunk
Tamias speciosus
Alpine Chipmunk
Tamias alpinus
Long-eared Chipmunk
Tamias quadrimaculatus
Tamia de Merriam
Tamias merriami
Tamia mineur
Tamias minimus
American Beaver
Castor canadensis
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Yosemite National Park | 🇺🇸 United States | |
| 2 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | |
| 3 | Redwood National Park | 🇺🇸 United States | |
| 4 | Channel Islands National Park | 🇺🇸 United States |
Quick answers
What are the chances of seeing a Western Gray Squirrel in Yosemite National Park?
About 61% of visitor-days record a Western Gray Squirrel sighting in Yosemite National Park, based on 816 observer-days of citizen-science data from GBIF.
When is the best time to see Western Gray Squirrel in Yosemite National Park?
December has the highest sighting rate for Western Gray Squirrel in Yosemite National Park in our monthly data.