Brown-headed Cowbirds in Missouri
When cowbirds are present in Missouri, when they nest, which native Missouri plants feed them, and how to host them in a USDA 5b–7b yard.
- Status in Missouri
- Year-round resident
- Nesting window
- April–July
- Broods
- —
- Hardiness zones
- USDA 5b–7b
When to expect cowbirds in Missouri
Brown-headed Cowbirds live in Missouri all year. Cold winters with variable snow; ice storms can shut down natural food for days. That makes the cold months the time your yard matters most to them.
Humid continental, from the Ozark Plateau in the south to prairie and river floodplains in the north.
Nesting in Missouri
Across Missouri, cowbirds typically nest from April–July. Plan around that window: March for setup, July for clean-out.
Hot, humid summers.
- 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 Missouri plants that attract cowbirds
Of the regional native plants we track for Missouri, these 8 provide food or cover cowbirds 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 cowbirds through the Missouri year
- Top foods: Millet, Cracked corn.
- In Missouri's winter: Cold winters with variable snow; ice storms can shut down natural food for days.
Frequently asked
Are cowbirds in Missouri year-round?
Yes. Brown-headed Cowbirds are year-round residents in Missouri.
When do cowbirds nest in Missouri?
Nesting in Missouri 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 Missouri?
Wild bergamot, Purple coneflower, Black-eyed Susan, Common sunflower, New England aster, Little bluestem, Tall goldenrod, Sugar maple are native plants in Missouri that provide food or cover for cowbirds.
Brown-headed Cowbirds in other regions
Other backyard birds in Missouri
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 — Missouri
- 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.