• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Alder Flycatcher - BirdForum Opus

Photo by Marcel Gauthier
Laprairie, Quebec, Canada, July 2005
Empidonax alnorum


5-6" (13-15 cm). Slightly smaller than a House Sparrow. Dull gray-green above, whitish below, with 2 dull white wing bars and narrow white eye ring (often not noticeable).
This is another very difficult Empidonax, and is best identified from similar species by voice, breeding habitat, and nest.

Similar Species

Indistinguishable in appearance from the Willow Flycatcher, and frequents the same habitats. Distinguished from Willow Flycatcher by voice and in some areas by range.

Likely to overlap with Acadian Flycatcher, Black-capped Flycatcher, Buff-breasted Flycatcher, Cordilleran Flycatcher, Dusky Flycatcher, Hammond's Flycatcher, Least Flycatcher, Pacific-slope Flycatcher, Pine Flycatcher, White-throated Flycatcher, Willow Flycatcher, Yellow-bellied Flycatcher, Yellowish Flycatcher.

See also Empidonax.


Breeds from Alaska east through Manitoba to Newfoundland and south to British Columbia, Great Lakes region, and southern New England. Winters in the tropics, from Colombia to Bolivia.

Approximate distribution map. From Xeno canto / NatureServe data at file date (from Xeno Canto)



Clements regards this as a monotypic species [1].


Willows, alders, brushy swamps.



The diet includes insects, some fruit in winter.


The nest is a coarse, loose cup. The clutch consists of 3-4 creamy white or buff eggs, unmarked or dotted with dark irregular markings around large end.


Song: a harsh rreeBEEA


  1. Clements, JF. 2009. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2009. Ithaca: Cornell Univ. Press. ISBN 978-0801445019.
  2. All About Birds

Recommended Citation

External Links

GSearch checked for 2020 platform.