A medium-sized 'empidonax' flycatcher with a 'nasal' call/song different than other flycatchers in its genus, and usually seen in marshy habitat (Cornell). |
Northern migrant. The Alder Flycatcher and [Willow Flycatcher] are virtually impossible to tell apart. |
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Northern migrant. The [Alder Flycatcher] and Willow Flycatcher are virtually impossible to tell apart. |
Northern migrant. A bit greener than other similar flycatchers. Alt photo. |