Migration & timing

Great Blue Heron in Pennsylvania

There aren't yet enough observations of Great Blue Heron in Pennsylvania to describe its timing with confidence.

Sighting 13 observations in Pennsylvania

Check back as more observations come in, or explore Great Blue Heron across North America.

Great Blue Heron elsewhere

More birds in Pennsylvania

Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.