Migration & timing

Great Horned Owl in Illinois

There aren't yet enough observations of Great Horned Owl in Illinois to describe its timing with confidence.

Sighting 3 observations in Illinois

Check back as more observations come in, or explore Great Horned Owl across North America.

Great Horned Owl elsewhere

More birds in Illinois

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