This bird is virtually identical to the Pacific-slope Flycatcher.

In the United States, the Pacific-slope Flycatcher takes its name from the region it inhabits.

The Pacific-slope Flycatcher inhabits either coniferous or deciduous forests.

The Pacific-slope Flycatcher (Empidonax difficilis) is a small insectivorous bird of the family Tyrannidae.

These are the insular forms of the Orange-crowned Warbler, Pacific-slope Flycatcher, and Allen's Hummingbird.

The ptsick or ptik note has the first syllable higher-pitched than the second-the only difference from the Pacific-slope Flycatcher's song (Sibley 2000).

The male's typical position call is a loud and distinctive pit pete or tse-seet, but some give a "rising tsweep" or a "slurred tseeweep, like the calls of Pacific-slope Flycatchers (Sibley 2000).

Fauna in the area include a variety of birds such as Hermit Warbler, Sooty Grouse, Chestnut-backed Chickadee, Golden-crowned Kinglet, Steller's Jay, and Pacific-slope Flycatcher.

In plumage, the Pacific-slope Flycatcher is virtually identical to the Cordilleran Flycatcher, and differs only subtly from most Empidonax flycatchers in North America, but its breeding habitat and call are different.

Birds in lower numbers include Vaux's Swifts, the endangered Spotted Owl, Bald Eagles, the Downy Woodpecker, Hairy Woodpeckers, the Pine Siskin, the Hermit Warbler, Pacific-slope Flycatchers, Golden-crowned Kinglets, and Ruffed Grouse.

The Pacific-slope Flycatcher (Empidonax difficilis) is a small insectivorous bird of the family Tyrannidae.