 Breeding evidence |
 Relative abundance |
 Probability of observation |
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Click on plot to view table of mean abundance
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Number of squares
Long-term BBS trends
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-1.35 (-2.24 - -0.49)|
Mean abundance (number of birds detected per 5 min. point count) and percentage of squares occupied by region Bird Conservation Regions [abund. plot]
[%squares plot]
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Atlas Results
Atlas results coming soon
Excerpts Adapted from the Birds of Saskatchewan:
The Alder Flycatcher and its alter ego, the Willow Flycatcher, formerly combined as Traill's Flycatcher, were split in 1973 into separate species. These two members of the Empidonax genus can be reliably identified in the field only by voice and, to a lesser extent, by locality. The Alder Flycatcher is the more widely distributed, primarily in the northern three-quarters of the province, while the Willow Flycatcher is found in the southern quarter. The Alder Flycatcher's overall breeding range includes the entire boreal forest from Alaska to Labrador south to south-central British Columbia and the northeastern US. Its winter range is poorly known, but it appears to be mainly western Amazonia.
The Alder Flycatcher nests near water, be that creek, river, lake, or slough, provided there is a dense jungle of willow, alder, or other shrubbery in which to nest and forage. During migration the species may be recorded in all types of tree or shrub habitats.
A common summer resident in moist shrubbery in a wide range that includes the subarctic, boreal, parkland and Cypress Hills (Smith 1996). This is the most common small flycatcher in migration at Last Mountain Bird Observatory. However, numbers captured in fall at Last Mountain Bird Observatory are declining at a statistically significant rate of 1.69% per year.
Original text by Maurice L. Mareschal. Text adapted by Daniel J. Sawatzky
Read more about the Alder Flycatcher in the Birds of Saskatchewan here.
Recommended citation: Latremouille, L. M. 2025. Alder Flycatcher in Latremouille, L. M., S. L. Van Wilgenburg, C. B. Jardine, D. Lepage, A. R. Couturier, D. Evans, D. Iles, and K. L. Drake (eds.). 2025. The Atlas of the Breeding Birds of Saskatchewan, 2017-2021. Birds Canada. Saskatoon, Saskatchewan https://sk.birdatlas.ca/accounts/speciesaccount.jsp?sp=ALFL&lang=en [14 Nov 2025]
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