Dusky Flycatchers are Rare in May.
Habitat
During migration they are less restricted than during the breeding season and can be found in brushy areas, along streams, and in shady, broadleaved woodlands.
Behavior
Dusky Flycatchers view their prey from exposed perches and fly out from the perch to catch the insects in the air. Sometimes birds hover near foliage or bark to catch flying insects. Occasionally they pounce on prey on the ground. Both Dusky and Hammond's Flycatchers flick their tails in an up-down motion, while the Gray Flycatcher flicks its tail down and then up. This behavior may help narrow down the choices when trying to distinguish between the Empidonax flycatchers.
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