Migration & timing
Forster's Tern in Ontario
There aren't yet enough observations of Forster's Tern in Ontario to describe its timing with confidence.
Sighting 3 observations in Ontario
Check back as more observations come in, or explore Forster's Tern across North America.
Forster's Tern elsewhere
More birds in Ontario
Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.