Wood Ducks in Illinois
When wood ducks 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
- Year-round resident
- Nesting window
- March–June
- Broods
- 1–2 per season
- Hardiness zones
- USDA 5a–7b
- Nest box
- 4 × 3 in oval hole, 10 × 18 in floor, 6–20 ft
When to expect wood ducks in Illinois
Wood Ducks live in Illinois all year. Cold, windy winters in the north; the southern tip is milder and hosts more wintering species. That makes the cold months the time your yard matters most to them.
Humid continental, grading from the Lake Michigan shore and prairie north to the forested Shawnee Hills in the south.
Nesting in Illinois
Across Illinois, wood ducks typically nest from March–June. Plan around that window: February for setup, June for clean-out.
Hot, humid summers; much of the state is farmland, so backyard native plantings matter.
- Have boxes cleaned and mounted before February — wood ducks begin prospecting ahead of egg-laying.
- Use a 4 × 3 in oval entrance on a 10 × 18 in floor, mounted 6–20 ft.
- Fit a pole baffle or hole guard; ventilation gaps and drainage holes are essential.
- Clean out old nests after each brood and again after June.
Native Illinois plants that attract wood ducks
Of the regional native plants we track for Illinois, these 8 provide food or cover wood ducks use:
Acorns plus hundreds of caterpillar species for nestling food.
Drought-hardy prairie oak with large acorns and a heavy insect load.
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.
Feeding wood ducks through the Illinois year
- Top foods: Cracked corn (on water margins), Millet.
- In Illinois's winter: Cold, windy winters in the north; the southern tip is milder and hosts more wintering species.
Full diet breakdown for wood ducks · Best feeder for wood ducks
Frequently asked
Are wood ducks in Illinois year-round?
Yes. Wood Ducks are year-round residents in Illinois.
When do wood ducks nest in Illinois?
Nesting in Illinois typically runs March–June, with 1–2 per season. Clutches are 6–16 eggs, incubated for 28–37 days.
What native plants attract wood ducks in Illinois?
White oak, Bur oak, Wild bergamot, Purple coneflower, Black-eyed Susan, Common sunflower, New England aster, Little bluestem are native plants in Illinois that provide food or cover for wood ducks.
What size birdhouse hole do wood ducks need?
4 × 3 in oval, with a floor of 10 × 18 in mounted 6–20 ft.
Wood Ducks in other regions
Other backyard birds in Illinois
Sources
- Wood Duck — All About Birds, Cornell Lab of Ornithology
- Wood Duck life history — Cornell Lab of Ornithology
- Wood Duck — Audubon Guide to North American Birds
- NestWatch nest box plans and species requirements — Cornell Lab
- 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.