Zapus trinotatus
Silhouette: PhyloPic
In 3 days ~10% in a week ~30%
The Pacific jumping mouse (Zapus trinotatus) is a species of rodent in the family Zapodidae. Found in Canada and the United States, its natural habitats are temperate grassland and swamps. Pacific jumping mice can be distinguished from other rodents that belong to the same genus by their larger size. They have a distinct color separation between the back and underside. Other distinctive features of the Pacific jumping mouse, especially in contrast to the Western jumping mouse, include ears fringed with light brown fur or with fur that matches the back.
These rodents prefer to live in moist habitats and are frequently found in riparian or meadow areas near rivulets. They rely on grass seeds as their main diet, and thus they prefer inhabiting areas with thick vegetation, which provide refuge from predators as well as food resources. Besides eating grass, they feed also on fungi and insects. They spend most of the autumn season fattening up in preparation for winter hibernation, which is spent in small burrows in the ground. When their hibernation period of up to 8 months is over, they mate and produce a litter of 4 or more young. Pacific jumping mice have many predators... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Olympic National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vancouver | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Pacific Jumping Mouse sighting in Olympic National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 23rd most-seen of the 27 mammals we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May and August–September
In those months about 10% of wildlife watchers report a Pacific Jumping Mouse in Olympic National Park on a given day, against under 5% in June–July and October–April, the lowest months. Those are among Olympic National Park's driest months, with about 85 mm of rain a month against 370 mm in November.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Pacific Jumping Mouse sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Olympic National Park, in our data
Olympic National Park is the only park on Wallace's Line with enough records to rate Pacific Jumping Mouse sightings: under 5% of wildlife watchers there report one on a given day.
Same order: Rodentia
The closest relatives of the Pacific Jumping Mouse that you can see in Olympic National Park (order Rodentia, Rodents) are Douglas' Squirrel (about 40%), Olympic Marmot (about 40%) and Yellow-pine Chipmunk (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pacific Jumping Mouse is recorded against all the mammals logged in Olympic National Park (8 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.
