Based on 17,281 research-grade iNaturalist observations in Washington, Great Blue Heron is most often recorded in May; in Washington it behaves like a year-round resident. It ranks #2 among birds recorded in the state in our data.
Ardea herodias
Great Blue Heron in Washington 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 Washington in May
Mallard
American Robin
Canada Goose
Dark-eyed Junco
Song Sparrow
Red-winged Blackbird
Bald Eagle
American Crow
Places to look in Washington
National ForestGifford Pinchot National Forest
National ForestOlympic National Forest
State ParkPeace Arch Park
National ForestColville National Forest
National ForestMount Baker–Snoqualmie National Forest
Botanical GardenBellevue Botanical Garden
FAQ
When does Great Blue Heron appear in Washington?
Mainly April–March, with the most records in May.
How common is Great Blue Heron in Washington?
It ranks #2 by number of iNaturalist observations among birds in Washington (17,281 records in our sample).