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