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