What type of forest is found in the Pacific Northwest and is home to the northern spotted owl?

The forest type found in the Pacific Northwest and associated with the northern spotted owl is the temperate rainforest.

Pacific temperate rainforests stretch along the coast from Alaska and British Columbia through Washington and Oregon to northern California. Mild temperatures and abundant rainfall—often exceeding 300 centimeters annually—support enormous conifers such as Sitka spruce, western hemlock, Douglas fir, and western red cedar. Mosses, ferns, and fallen logs create a layered, humid ecosystem.

The northern spotted owl depends on mature and old-growth forests within this region. Large trees provide nesting cavities and platforms, while dense canopies and fallen woody debris support prey such as flying squirrels and woodrats. Logging and habitat fragmentation made the owl a major focus of Pacific Northwest conservation disputes.

A common mix-up is calling this habitat a tropical rainforest. Both are wet, but temperate rainforests occur outside the tropics and experience cooler seasonal conditions. Deciduous, boreal, and tropical forests may occur elsewhere in the region or world, but they do not best describe the owl’s characteristic old-growth habitat.