Based on 2,355 research-grade iNaturalist observations in Pennsylvania, Green Heron is most often recorded in August; in Pennsylvania it behaves like a summer visitor / breeder. It ranks #50 among birds recorded in the state in our data.
Butorides virescens
Green Heron in Pennsylvania by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Pennsylvania in August
Great Blue Heron
Ruby-throated Hummingbird
American Goldfinch
Great Egret
Osprey
Red-tailed Hawk
Gray Catbird
Mourning Dove
Places to look in Pennsylvania
National ForestAllegheny National Forest
State ParkPresque Isle State Park
Botanical GardenJenkins Arboretum
State ParkCherry Springs State Park
State ParkColton Point State Park
State ParkLeonard Harrison State Park
FAQ
When does Green Heron appear in Pennsylvania?
Mainly April–September, with the most records in August.
How common is Green Heron in Pennsylvania?
It ranks #50 by number of iNaturalist observations among birds in Pennsylvania (2,355 records in our sample).