The Hermit Warbler is considered a specialist in living in the canopy of 200 foot tall conifers. In western Washington it populates Douglas firs, western hemlocks, and western red cedars.
The Pacific-slope Flycatcher was formerly considered the same species as the Cordilleran Flycatcher Empidonax occidentalis and known as the Western Flycatcher.
“Abundant and well-known, the Common Yellowthroat has succeeded by being a nonconformist. As the only one of our warblers that will nest in open marshes, it is found in practically every reed-bed and patch of cattails from coast to coast” (Kaufman, p. 550).
