Based on 4,301 research-grade iNaturalist observations in Illinois, White-breasted Nuthatch is most often recorded in March; in Illinois it behaves like a year-round resident. It ranks #25 among birds recorded in the state in our data.
Sitta carolinensis
White-breasted Nuthatch in Illinois by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Illinois in March

American Robin
Canada Goose

Mallard

Northern Cardinal
Red-winged Blackbird

House Sparrow

Dark-eyed Junco

Song Sparrow
Places to look in Illinois
Cahokia
Botanical GardenMorton Arboretum
Shawnee National Forest
Chicago Botanic Garden
Ladd Arboretum
State ParkStarved Rock State Park
FAQ
When does White-breasted Nuthatch appear in Illinois?
Mainly February–January, with the most records in March.
How common is White-breasted Nuthatch in Illinois?
It ranks #25 by number of iNaturalist observations among birds in Illinois (4,301 records in our sample).