Migration & timing
Common Tern in Ontario
There aren't yet enough observations of Common Tern in Ontario to describe its timing with confidence.
Sighting 13 observations in Ontario
Check back as more observations come in, or explore Common Tern across North America.
Common Tern elsewhere
More birds in Ontario
Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.