Skip to main content
Illustration

Illinoisspring migration

When does spring bird migration peak in Illinois?

Spring bird migration usually peaks from February to June.

Checked Sep 30.

Your guide to Illinois

Every place on this page
Map: approximate positions; state lines US Census.

Plan from a town

Frost dates and what's in season nearby

Each place's usual timing in Illinois

In each source's own words: a usual peak where one is named, otherwise the place's season
  • Each place's usual timing from its own source: a peak only where the source names one (not a forecast)

Places by state

Illinois

Official reports

Dated and linked
Show all 6

Questions people ask

Where can I see spring migration in Illinois?

We track 3 places: Chautauqua Refuge, Emiquon Refuge and Meredosia Refuge.

How do you track spring migration?

Each place moves through 4 stages: Birds arriving, Numbers building, Peak numbers and Birds moving on. Every stage we show comes from a dated report with its source, and every forecast lists its sources.