Lark Sparrows in Illinois
When lark sparrows are present in Illinois, when they nest, which native Illinois plants feed them, and how to host them in a USDA 5a–7b yard.
- Status in Illinois
- Summer breeder
- Nesting window
- April–July
- Broods
- 1–2 per season
- Hardiness zones
- USDA 5a–7b
When to expect lark sparrows in Illinois
Lark Sparrows are summer residents in Illinois, arriving shortly before nesting begins in April and leaving after the young are independent.
Humid continental, grading from the Lake Michigan shore and prairie north to the forested Shawnee Hills in the south.
Nesting in Illinois
Across Illinois, lark sparrows typically nest from April–July. Plan around that window: March for setup, July for clean-out.
Hot, humid summers; much of the state is farmland, so backyard native plantings matter.
- Lark Sparrows don't use nest boxes. Keep dense native shrubs and trees such as sugar maple for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Illinois plants that attract lark sparrows
Of the regional native plants we track for Illinois, these 8 provide food or cover lark sparrows use:
Tubular flowers for hummingbirds and seed heads for finches.
Leave seed heads up through winter for goldfinches.
Prolific seed heads for finches and sparrows.
Annual native sunflower — the original feeder seed.
Late nectar for insects and fall seed for sparrows.
Native bunchgrass; winter seed and ground cover for sparrows and juncos.
Insect-rich in fall and seed in winter.
Hosts hundreds of caterpillar species; spring flowers draw early insects.
Feeding lark sparrows through the Illinois year
- Top foods: Millet, Cracked corn.
- In Illinois's summer: offer water and insect foods; natural food is abundant.
Full diet breakdown for lark sparrows · Best feeder for lark sparrows
Frequently asked
Are lark sparrows in Illinois year-round?
No. Lark Sparrows are summer breeders in Illinois and leave for the winter.
When do lark sparrows nest in Illinois?
Nesting in Illinois typically runs April–July, with 1–2 per season. Clutches are 3–6 eggs, incubated for 11–12 days.
What native plants attract lark sparrows in Illinois?
Wild bergamot, Purple coneflower, Black-eyed Susan, Common sunflower, New England aster, Little bluestem, Tall goldenrod, Sugar maple are native plants in Illinois that provide food or cover for lark sparrows.
Lark Sparrows in other regions
Other backyard birds in Illinois
Sources
- Lark Sparrow — All About Birds, Cornell Lab of Ornithology
- Lark Sparrow life history — Cornell Lab of Ornithology
- Lark Sparrow — Audubon Guide to North American Birds
- eBird region overview and bar charts — Illinois
- USDA Plant Hardiness Zone Map (2023)
- Audubon Native Plants Database
Timing reflects typical patterns for the region as a whole; local dates vary with elevation and year. Check the linked eBird bar charts for your county.