Pacific-slope flycatchers breed in humid coniferous, dense second-growth, and mixed deciduous-conifer woodlands. They have been found throughout British Columbia, Washington and Oregon in old-growth Douglas fir (Pseudotsuga menziesii), western hemlock (Tsuga heterophylla), sugar pine (Pinus lam-bertiana), and incense cedar (Calocedrus decurrens) forests. They are associated with shady, riparian habitats. They are primarily found at elevations from 0 to 1500 m. In British Columbia they have been found in red cedar (Thuja plicata) forests, primarily along dense creek vegetation and ravines, often near lakes and ponds. In Mexico, they winter in mountainous conifer forests, tropical deciduous forests, and tropical lowland evergreen forests.
Range elevation: 0 to 1500 m.
Habitat Regions: temperate ; tropical ; terrestrial
Terrestrial Biomes: taiga ; forest
Other Habitat Features: riparian