Migration & timing
Green Heron in Maryland
There aren't yet enough observations of Green Heron in Maryland to describe its timing with confidence.
Sighting 18 observations in Maryland
Check back as more observations come in, or explore Green Heron across North America.
Green Heron elsewhere
More birds in Maryland
Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.