Migration & timing
Gull-billed Tern in California
There aren't yet enough observations of Gull-billed Tern in California to describe its timing with confidence.
Sighting 2 observations in California
Check back as more observations come in, or explore Gull-billed Tern across North America.
Gull-billed Tern elsewhere
More birds in California
Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.