American Redstarts in Iowa
When American redstarts are present in Iowa, when they nest, which native Iowa plants feed them, and how to host them in a USDA 4b–6a yard.
- Status in Iowa
- Summer breeder
- Nesting window
- May–July
- Broods
- 1–2 per season
- Hardiness zones
- USDA 4b–6a
When to expect American redstarts in Iowa
American Redstarts are summer residents in Iowa, arriving shortly before nesting begins in May and leaving after the young are independent.
Humid continental prairie state, with loess hills in the west and the Driftless Area in the northeast.
Nesting in Iowa
Across Iowa, American redstarts typically nest from May–July. Plan around that window: April for setup, July for clean-out.
Hot, humid summers with thunderstorms.
- American Redstarts don't use nest boxes. Keep dense native shrubs and trees such as serviceberry, white oak, bur oak for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Iowa plants that attract American redstarts
Of the regional native plants we track for Iowa, these 8 provide food or cover American redstarts 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 redstarts through the Iowa year
- Top foods: None — mature deciduous trees are the draw.
- In Iowa's summer: offer water and insect foods; natural food is abundant.
Full diet breakdown for American redstarts · Best feeder for American redstarts
Frequently asked
Are American redstarts in Iowa year-round?
No. American Redstarts are summer breeders in Iowa and leave for the winter.
When do American redstarts nest in Iowa?
Nesting in Iowa typically runs May–July, with 1–2 per season. Clutches are 1–5 eggs, incubated for 10–13 days.
What native plants attract American redstarts in Iowa?
Serviceberry, White oak, Bur oak, Black cherry, American elderberry, Spicebush, New England aster, Tall goldenrod are native plants in Iowa that provide food or cover for American redstarts.
American Redstarts in other regions
Other backyard birds in Iowa
Sources
- American Redstart — All About Birds, Cornell Lab of Ornithology
- American Redstart life history — Cornell Lab of Ornithology
- American Redstart — Audubon Guide to North American Birds
- eBird region overview and bar charts — Iowa
- 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.