Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
Habitat
Douglas squirrels primarily inhabit coniferous forests in the Pacific Northwest of North America, including old-growth stands of Douglas fir, western hemlock, and ponderosa pine. They prefer mountainous or hilly terrain with dense tree cover for nesting and foraging, typically at elevations from sea level up to 2,500 meters.
Diet
Douglas squirrels mainly eat seeds from conifer cones, such as those from Douglas fir and pine trees, which they harvest and cache for winter. They also consume nuts, berries, fungi, and occasionally insects or bird eggs, with feeding activity peaking in the early morning and late afternoon.
Behavior
Douglas squirrels are diurnal and highly territorial, defending their home ranges of about 1-2 hectares with loud vocalizations and chases. They are agile climbers, building nests in tree cavities or branches, and exhibit caching behavior to store food for winter. Socially, they are solitary except during mating season, often communicating through alarm calls to warn of predators.
Conservation Status
The Douglas squirrel is classified as Least Concern by the IUCN, with a stable population trend due to its wide distribution. Major threats include habitat loss from logging, but it is not currently at risk.