Willow Flycatcher

Empidonax traillii
Willow Flycatcher thumbnail
Length: 6 in. (15 cm )
Obscure and difficult to see or identify in thick willows of swamps, lake edges and riparian areas in the west, the distinctive voice, sung by both male and female, makes its presence obvious. The nest is placed near water on a small twig fork and made of grass, hair, plant down and feathers. Its diet is almost exclusively insects caught in the air, but in the fall a few seed are also eaten. In the southwest US, this species is considered endangered as its riparian habitats are quickly disappearing.

The four-digit banding code is WIFL.

Marsh / swamp

Riparian / River forest
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Bibliographic details:

  • Article: Willow Flycatcher
  • Author(s): Dr. Biology
  • Publisher: Arizona State University School of Life Sciences Ask A Biologist
  • Site name: ASU - Ask A Biologist
  • Date published: July 13, 2017
  • Date accessed: March 24, 2018
  • Link:

APA Style

Dr. Biology. (2017, July 13). Willow Flycatcher. ASU - Ask A Biologist. Retrieved March 24, 2018 from

American Psychological Association. For more info, see

Chicago Manual of Style

Dr. Biology. "Willow Flycatcher". ASU - Ask A Biologist. 13 July, 2017.

MLA 2017 Style

Dr. Biology. "Willow Flycatcher". ASU - Ask A Biologist. 13 Jul 2017. ASU - Ask A Biologist, Web. 24 Mar 2018.

Modern Language Association, 7th Ed. For more info, see
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