Migration & timing
Bonaparte's Gull in Ontario
There aren't yet enough observations of Bonaparte's Gull in Ontario to describe its timing with confidence.
Sighting 17 observations in Ontario
Check back as more observations come in, or explore Bonaparte's Gull across North America.
Bonaparte's Gull elsewhere
More birds in Ontario
Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.