Based on 9,257 research-grade iNaturalist observations in Oregon, Great Blue Heron is most often recorded in May; in Oregon it behaves like a year-round resident. It ranks #4 among birds recorded in the state in our data.
Ardea herodias
Great Blue Heron in Oregon 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 Oregon in May
Mallard
American Robin
Canada Goose
Black-headed Grosbeak
Red-winged Blackbird
Bald Eagle
Song Sparrow
Dark-eyed Junco
Places to look in Oregon
National ForestWillamette National Forest
National ForestMount Hood National Forest
National ForestDeschutes National Forest
Botanical GardenHoyt Arboretum
Botanical GardenLeach Botanical Garden
National ForestUmatilla National Forest
FAQ
When does Great Blue Heron appear in Oregon?
Mainly April–March, with the most records in May.
How common is Great Blue Heron in Oregon?
It ranks #4 by number of iNaturalist observations among birds in Oregon (9,257 records in our sample).