Brown-headed Cowbirds in South Dakota
When cowbirds are present in South Dakota, when they nest, which native South Dakota plants feed them, and how to host them in a USDA 3b–5b yard.
- Status in South Dakota
- Year-round resident
- Nesting window
- April–July
- Broods
- —
- Hardiness zones
- USDA 3b–5b
When to expect cowbirds in South Dakota
Brown-headed Cowbirds live in South Dakota all year. Cold, windy winters. That makes the cold months the time your yard matters most to them.
Continental, with prairie east of the Missouri River and the forested Black Hills in the west.
Nesting in South Dakota
Across South Dakota, cowbirds typically nest from April–July. Plan around that window: March for setup, July for clean-out.
Warm summers with thunderstorms; the Black Hills host western mountain birds.
- Brown-headed Cowbirds 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 South Dakota plants that attract cowbirds
Of the regional native plants we track for South Dakota, these 8 provide food or cover cowbirds use:
Tubular flowers for hummingbirds and seed heads for finches.
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.
Nectar-rich in summer, seed for finches in fall.
Feeding cowbirds through the South Dakota year
- Top foods: Millet, Cracked corn.
- In South Dakota's winter: Cold, windy winters.
Frequently asked
Are cowbirds in South Dakota year-round?
Yes. Brown-headed Cowbirds are year-round residents in South Dakota.
When do cowbirds nest in South Dakota?
Nesting in South Dakota typically runs April–July, with —. Clutches are up to 36 eggs per season, one per host nest, incubated for 10–12 days.
What native plants attract cowbirds in South Dakota?
Wild bergamot, Black-eyed Susan, Common sunflower, New England aster, Little bluestem, Tall goldenrod, Sugar maple, Rocky Mountain bee plant are native plants in South Dakota that provide food or cover for cowbirds.
Brown-headed Cowbirds in other regions
Other backyard birds in South Dakota
Sources
- Brown-headed Cowbird — All About Birds, Cornell Lab of Ornithology
- Brown-headed Cowbird life history — Cornell Lab of Ornithology
- Brown-headed Cowbird — Audubon Guide to North American Birds
- eBird region overview and bar charts — South Dakota
- 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.