Migration & timing

Tree Swallow in Maryland

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

Sighting 15 observations in Maryland

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

Tree Swallow elsewhere

More birds in Maryland

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