Migration & timing

Tree Swallow in Washington

There aren't yet enough observations of Tree Swallow in Washington to describe its timing with confidence.

Sighting 6 observations in Washington

Check back as more observations come in, or explore Tree Swallow across North America.

Tree Swallow elsewhere

More birds in Washington

Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.