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