Migration & timing
Common Grackle in Colorado
There aren't yet enough observations of Common Grackle in Colorado to describe its timing with confidence.
Sighting 6 observations in Colorado
Check back as more observations come in, or explore Common Grackle across North America.
Common Grackle elsewhere
More birds in Colorado
Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.