Tamias quadrimaculatus
Silhouette: Chloé Schmidt · PhyloPic
In 3 days ~30% in a week ~50%
The long-eared chipmunk (Neotamias quadrimaculatus), also called the Sacramento chipmunk or the four-banded chipmunk, is a species of rodent in the squirrel family, Sciuridae. It is endemic to the central and northern Sierra Nevada of California and Nevada in the United States. Long-eared chipmunks have the longest ears of all species of chipmunks.
Male long-eared chipmunks range from 23.0–23.9 centimeters (9.1–9.4 in) in total length, while females range from 23.0–24.5 centimeters (9.1–9.6 in). The tail makes up a large part of the total length, ranging from 8.5–10.0 centimeters (3.3–3.9 in) in males and 9.0–10.1 centimeters (3.5–4.0 in) in females. Males weigh from 74.1–89.0 grams (2.61–3.14 oz), and females weigh from 81.0–105.0 grams (2.86–3.70 oz). The chipmunks are bright red-brown in color, displaying five dark stripes and four pale stripes on their backs. They also have large, noticeable white patches at the base of both ears.
Long-eared chipmunks are diurnal. They forage on the ground for fungi, seeds, fruits, flowers, and insects, though in the fall they will climb conifer trees to eat seeds from the cones. The chipmunks hibernate in a den... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yosemite National Park | 🇺🇸 United States |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Long-eared Chipmunk sighting in Yosemite National Park on a given day, based on 28 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 13th most-seen of the 21 mammals we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
October
In that month about 20% of wildlife watchers report a Long-eared Chipmunk in Yosemite National Park on a given day, against under 5% in November to April, the lowest months. That is one of Yosemite National Park's driest months, with about 45 mm of rain against 220 mm in January.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Long-eared Chipmunk sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Yosemite National Park, in our data
Yosemite National Park is the only park on Wallace's Line with enough records to rate Long-eared Chipmunk sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Tamias
The closest relatives of the Long-eared Chipmunk that you can see in Yosemite National Park (genus Tamias, Eastern Chipmunks) are Lodgepole Chipmunk (about 20%) and Alpine Chipmunk (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Long-eared Chipmunk is recorded against all the mammals logged in Yosemite National Park (28 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
