Living Bird Magazine
Dusky FlycatcherEmpidonax oberholseri
- ORDER: Passeriformes
- FAMILY: Tyrannidae
A dull flycatcher of western mountains, the Dusky Flycatcher is found in chaparral, streamside thickets, and open brushy areas. It is extremely difficult to tell from Hammond's Flycatcher by appearance alone.More ID Info
- Mosquero Oscuro (Spanish)
- Moucherolle sombre (French)
- Cool Facts
- The Dusky and Hammond's flycatchers are so similar that telling them apart is a true challenge. Color and pattern do not help. Even voice, usually the most helpful character in distinguishing Empidonax flycatchers, does not help much. The best character for this species pair in the hand is the length of the outer wing feathers: Dusky has relatively short wingtips, with the outermost feather (primary 10, or "p10") being shorter or the same length as the middle one (p5); Hammond's has long wingtips with p10 being longer than p5.
- The oldest recorded Dusky Flycatcher was a female, and at least 8 years, 2 months old when she was recaptured and rereleased during banding operations in California.