 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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1.65 (0.58 - 2.79)|
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 Philadelphia Vireo is somewhat challenging to identify due to the similarity to other, more common vireos: its voice is much like that of the Red-eyed and its plumage is similar to a Warbling Vireo's. Compounding the problem is its preference for foraging relatively high in the canopy. It breeds throughout the boreal forest region of southern Canada and extreme northern US, from east-central British Columbia to southern Newfoundland. The species has an extremely small winter range that lies almost entirely in Central America (AOU 1998).
Preferred breeding habitat includes deciduous second-growth, and thickets of alder, birch, and willow bordering muskegs and watercourses (Smith 1996, Smith in Leighton et al. 2002). During migration the species is seen in all types of wooded habitats (ARS).
Philadelphia Vireos are uncommon summer residents in the boreal forest (Smith 1996). Because they are notoriously late spring migrants and early fall migrants, their status in southern Saskatchewan is difficult to determine. However, they appear to be rare summer residents and uncommon migrants in the aspen parkland, and rare migrants in the grasslands (ibid.).
Original text by J. Burke Korol. Text adapted by Daniel J. Sawatzky
Read more about the Philadelphia Vireo in the Birds of Saskatchewan here.
Recommended citation: Latremouille, L. M. 2025. Philadelphia Vireo 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=PHVI&lang=en [14 Nov 2025]
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