Flycatcher Identification Tips
U. S. Geological Survey)
- Small flycatcher
- Triangular head
- Eye ring
- Lower mandible orange
- Brownish-olive upperparts
- Breast has olive wash
- Whitish throat, belly and undertail coverts
- Wing bars-white in adults, buffy in juveniles
- Breeding habitat is deciduous woods
The empidonax flycatchers are very difficult to tell apart. The safest
way to differentiate them is by habitat, range, and voice in the breeding
season. Differences in plumage due to molt, wear and age make the
plumage quite variable.
The Least Flycatcher is the smallest empidonax with a small bill that
makes the head look big. Yellow-bellied
Flycatcher is similar in size and shape but is greener above and
yellower below. Willow and Alder
have less obvious eye rings, longer tails and browner upperparts.
Acadian is larger, bigger-billed,
greener above, and yellower below.
In the west, Hammond's is typically darker on the breast. Dusky and
Gray are larger and Pacific-slope and Cordilleran have oval eye rings,
are larger, and yellower underneath.
to Least Flycatcher page