Migration & timing
Blackburnian Warbler in Ontario
There aren't yet enough observations of Blackburnian Warbler in Ontario to describe its timing with confidence.
Sighting 14 observations in Ontario
Check back as more observations come in, or explore Blackburnian Warbler across North America.
Blackburnian Warbler elsewhere
More birds in Ontario
Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.