Migration & timing

Brown-headed Cowbird in Illinois

There aren't yet enough observations of Brown-headed Cowbird in Illinois to describe its timing with confidence.

Sighting 4 observations in Illinois

Check back as more observations come in, or explore Brown-headed Cowbird across North America.

Brown-headed Cowbird elsewhere

More birds in Illinois

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