American Kestrels in Wisconsin
When American are present in Wisconsin, when they nest, which native Wisconsin plants feed them, and how to host them in a USDA 3b–6a yard.
- Status in Wisconsin
- Year-round resident
- Nesting window
- April–June
- Broods
- 1–2 per season
- Hardiness zones
- USDA 3b–6a
- Nest box
- 3 in hole, 8 × 8 in floor, 10–30 ft
When to expect American in Wisconsin
American Kestrels live in Wisconsin all year. Cold, snowy winters; boreal finches visit the north. That makes the cold months the time your yard matters most to them.
Humid continental, with two Great Lakes shorelines, northern forest and southern prairie-oak savanna.
Nesting in Wisconsin
Across Wisconsin, American typically nest from April–June. Plan around that window: March for setup, June for clean-out.
Warm, humid summers.
- Have boxes cleaned and mounted before March — American begin prospecting ahead of egg-laying.
- Use a 3 in entrance on a 8 × 8 in floor, mounted 10–30 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 Wisconsin plants that attract American
Of the regional native plants we track for Wisconsin, these 8 provide food or cover American use:
Early-summer berries arrive exactly when nestlings are being fed.
Acorns plus hundreds of caterpillar species for nestling food.
Drought-hardy prairie oak with large acorns and a heavy insect load.
Summer fruit and one of the top caterpillar host trees.
Late-summer berry clusters taken by over 40 bird species.
Lipid-rich red fruit fuels fall migrants.
Late nectar for insects and fall seed for sparrows.
Insect-rich in fall and seed in winter.
Feeding American through the Wisconsin year
- Top foods: None — hunts in open ground; a kestrel box is the draw.
- In Wisconsin's winter: Cold, snowy winters; boreal finches visit the north.
Frequently asked
Are American in Wisconsin year-round?
Yes. American Kestrels are year-round residents in Wisconsin.
When do American nest in Wisconsin?
Nesting in Wisconsin typically runs April–June, with 1–2 per season. Clutches are 3–7 eggs, incubated for 26–32 days.
What native plants attract American in Wisconsin?
Serviceberry, White oak, Bur oak, Black cherry, American elderberry, Spicebush, New England aster, Tall goldenrod are native plants in Wisconsin that provide food or cover for American.
What size birdhouse hole do American need?
3 in, with a floor of 8 × 8 in mounted 10–30 ft.
American Kestrels in other regions
Other backyard birds in Wisconsin
Sources
- American Kestrel — All About Birds, Cornell Lab of Ornithology
- American Kestrel life history — Cornell Lab of Ornithology
- American Kestrel — Audubon Guide to North American Birds
- NestWatch nest box plans and species requirements — Cornell Lab
- eBird region overview and bar charts — Wisconsin
- 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.