Migration & timing
American Tree Sparrow in Pennsylvania
There aren't yet enough observations of American Tree Sparrow in Pennsylvania to describe its timing with confidence.
Sighting 2 observations in Pennsylvania
Check back as more observations come in, or explore American Tree Sparrow across North America.
American Tree Sparrow elsewhere
More birds in Pennsylvania
Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.