Migration & timing
Common Merganser in Washington
There aren't yet enough observations of Common Merganser in Washington to describe its timing with confidence.
Sighting 15 observations in Washington
Check back as more observations come in, or explore Common Merganser across North America.
Common Merganser elsewhere
More birds in Washington
Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.