Migration & timing
Green Heron in Wisconsin
There aren't yet enough observations of Green Heron in Wisconsin to describe its timing with confidence.
Sighting 4 observations in Wisconsin
Check back as more observations come in, or explore Green Heron across North America.
Green Heron elsewhere
More birds in Wisconsin
Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.