Based on 1,329 research-grade iNaturalist observations in District of Columbia, Great Blue Heron is most often recorded in May; in District of Columbia it behaves like a seasonal. It ranks #7 among birds recorded in the state in our data.
Ardea herodias
Great Blue Heron in District of Columbia 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 District of Columbia in May
Mallard
American Robin
House Sparrow
European Starling
Gray Catbird
Northern Cardinal
Common Grackle
Canada Goose
Places to look in District of Columbia
Botanical GardenUnited States Botanic Garden
Botanical GardenUnited States National Arboretum
Botanical GardenBartholdi Park
FAQ
When does Great Blue Heron appear in District of Columbia?
Mainly March–December, with the most records in May.
How common is Great Blue Heron in District of Columbia?
It ranks #7 by number of iNaturalist observations among birds in District of Columbia (1,329 records in our sample).