Birds by season

Birds in Illinois, month by month

What you are most likely to see, ranked by share of birder checklists.

By month

Birds in Illinois in January
Birds in Illinois in February
Birds in Illinois in March
Birds in Illinois in April
Birds in Illinois in May
Birds in Illinois in June
Birds in Illinois in July
Birds in Illinois in August
Birds in Illinois in September
Birds in Illinois in October
Birds in Illinois in November
Birds in Illinois in December

By season

Winter birds in Illinois
Spring birds in Illinois
Summer birds in Illinois
Fall birds in Illinois