Hammond's Flycatcher

Hammond's Flycatcher is a small, subtly gray-toned Empidonax flycatcher associated with mature coniferous forest in the western mountains, particularly favoring tall, closed-canopy stands where it forages actively high overhead. It shows olive-gray upperparts, a grayish throat and breast, a modest whitish eye-ring, and pale wing bars, differing only subtly from several similar-looking relatives.

As with most Empidonax flycatchers, definitive identification usually depends on voice, structure, and habitat rather than plumage alone, since Hammond's overlaps closely in appearance with Dusky and Gray Flycatchers.

Key Field Marks

• Olive-gray upperparts and a grayish wash across the throat and breast, with a pale yellow tinge on the belly
• Small, indistinct whitish eye-ring
• Two pale wing bars
• Relatively long primary projection (wingtip extension past the tail base) and short bill compared to similar species

Similar Species

• Dusky Flycatcher is very similar but has a shorter primary projection, a longer tail, and typically a longer bill; the two are best separated by structure and voice.
• Gray Flycatcher is paler gray overall with a longer tail that it characteristically dips downward, unlike Hammond's.
• Pacific-slope/Cordilleran Flycatchers show a more yellow wash and bolder, teardrop-shaped eye-ring.

Hammond's Flycatchers breed in mature coniferous forests of the western mountains, from Alaska and western Canada south through the Pacific Northwest, Rockies, and Sierra Nevada, generally favoring tall, closed-canopy stands of fir, spruce, and other conifers where they forage in the mid to upper canopy.

The species winters primarily in Mexico and Central America, migrating through a broad swath of the western United States.

Voice

Gives a soft series of burry notes in its song, often rendered as seput, tseeer, seet, along with a sharp peek call; voice is key for separating it from similar Empidonax species.

Feeding

Forages actively, often high in the canopy of mature conifers, sallying out to catch flying insects and also hover-gleaning prey from foliage.

Nesting

Builds a compact cup nest of plant fibers and lichen, typically placed on a horizontal branch well up in a conifer, often well concealed within the canopy.