Tamias striatus
Silhouette: Chloé Schmidt · PhyloPic
In 3 days ~30% in a week ~60%
The eastern chipmunk (Tamias striatus) is a chipmunk species found in eastern North America. It is the only living member of the genus Tamias. The name "chipmunk" probably comes from the Ojibwe word ᐊᒋᑕᒨ ajidamoo (or possibly ajidamoonh, the same word in the Ottawa dialect of Ojibwe), which translates literally as "one who descends trees headlong." First described by Mark Catesby in his 1743 The Natural History of Carolina, Florida, and the Bahama Islands, the chipmunk was eventually classified as Sciurus striatus by Linnaeus, meaning "striped squirrel" in Latin. The scientific name was changed to Tamias striatus, meaning "striped steward", by Johann Illiger in 1811.
A small species, it reaches about 30 cm (12 in) in length including the tail, and a weight of 66–150 g (2.3–5.3 oz). It has reddish-brown fur on its upper body and five dark brown stripes contrasting with light brown stripes along its back, ending in a dark tail. It has lighter fur on the lower part of its body. It has a tawny stripe that runs from its whiskers to below its ears, and light stripes over its eyes. It has two fewer teeth than other chipmunks and four toes each on the front... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Voyageurs National Park | 🇺🇸 United States | |
| 2 | Cape Breton Highlands National Park | 🇨🇦 Canada | |
| 3 | Acadia National Park | 🇺🇸 United States | |
| 4 | Shenandoah National Park | 🇺🇸 United States | |
| 5 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 6 | Gros Morne National Park | 🇨🇦 Canada | |
| 7 | Riding Mountain National Park | 🇨🇦 Canada |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 3 | Toronto | 🇨🇦 Canada | |
| 4 | Detroit | 🇺🇸 United States | |
| 5 | Chicago | 🇺🇸 United States | |
| 6 | Montreal | 🇨🇦 Canada | |
| 7 | Philadelphia | 🇺🇸 United States | |
| 8 | Washington | 🇺🇸 United States | |
| 9 | New York City | 🇺🇸 United States | |
| 10 | Baltimore | 🇺🇸 United States |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Brookfield Zoo | 🇺🇸 United States | |
| 2 | The Green Zoo Wuppertal | 🇩🇪 Germany | |
| 3 | Ralph Perkins II Wildlife Center and Woods Garden | 🇺🇸 United States | |
| 4 | Great Lakes Aquarium | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report an Eastern Chipmunk sighting in Riding Mountain National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 14th most-seen of the 24 mammals we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
August
In that month about 30% of wildlife watchers report an Eastern Chipmunk in Riding Mountain National Park on a given day, against under 5% in November to April, the lowest months. That is one of Riding Mountain National Park's wettest months, with about 70 mm of rain against 20 mm in February.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Eastern 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.
7th of 7
Of the 7 parks where we can rate Eastern Chipmunk sightings, Riding Mountain National Park ranks 7th at about 10%. The best odds are in Voyageurs National Park (United States, about 50%), Cape Breton Highlands National Park (Canada, about 40%) and Acadia National Park (United States, about 30%). All parks ranked.
GBIF citizen-science records
It is estimated from how often the Eastern Chipmunk is recorded against all the mammals logged in Riding Mountain National Park (12 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.
