Minnesota · Year-round resident

Brown-headed Cowbirds in Minnesota

When cowbirds are present in Minnesota, when they nest, which native Minnesota plants feed them, and how to host them in a USDA 3a–5b yard.

Blackbirds (Icteridae)Brown-headed CowbirdMolothrus ater

Status in Minnesota: Year-round resident
Nesting window: May–July
Broods: —
Hardiness zones: USDA 3a–5b

When to expect cowbirds in Minnesota

Brown-headed Cowbirds live in Minnesota all year. Temperatures below 0°F are routine — heated water, suet and roost boxes are survival aids, not extras. That makes the cold months the time your yard matters most to them.

Continental, with very cold winters and warm summers; prairie in the west, boreal forest in the northeast.

Nesting in Minnesota

Across Minnesota, cowbirds typically nest from May–July. Plan around that window: April for setup, July for clean-out.

A short, intense breeding season; most nesting runs May through July.

Brown-headed Cowbirds don't use nest boxes. Keep dense native shrubs and trees such as paper birch for nest sites.
Delay heavy pruning of shrubs until after July.

Native Minnesota plants that attract cowbirds

Of the regional native plants we track for Minnesota, these 8 provide food or cover cowbirds use:

Wild bergamot

Monarda fistulosa · Perennial

Nectar and seed.

Purple coneflower

Echinacea purpurea · Perennial

Leave seed heads up through winter for goldfinches.

Black-eyed Susan

Rudbeckia hirta · Perennial

Prolific seed heads for finches and sparrows.

Common sunflower

Helianthus annuus · Perennial

Annual native sunflower — the original feeder seed.

New England aster

Symphyotrichum novae-angliae · Perennial

Late nectar for insects and fall seed for sparrows.

Little bluestem

Schizachyrium scoparium · Perennial

Native bunchgrass; winter seed and ground cover for sparrows and juncos.

Tall goldenrod

Solidago altissima · Perennial

Insect-rich in fall and seed in winter.

Paper birch

Betula papyrifera · Tree

Catkin seed feeds redpolls and siskins all winter.

Feeding cowbirds through the Minnesota year

Top foods: Millet, Cracked corn.
In Minnesota's winter: Temperatures below 0°F are routine — heated water, suet and roost boxes are survival aids, not extras.

Full diet breakdown for cowbirds · Best feeder for cowbirds

Frequently asked

Are cowbirds in Minnesota year-round?

Yes. Brown-headed Cowbirds are year-round residents in Minnesota.

When do cowbirds nest in Minnesota?

Nesting in Minnesota typically runs May–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 Minnesota?

Wild bergamot, Purple coneflower, Black-eyed Susan, Common sunflower, New England aster, Little bluestem, Tall goldenrod, Paper birch are native plants in Minnesota that provide food or cover for cowbirds.

Other backyard birds in Minnesota

Northern Cardinal Eastern Bluebird Black-capped Chickadee Purple Martin Downy Woodpecker Hairy Woodpecker American Goldfinch Tufted Titmouse White-breasted Nuthatch House Wren Blue Jay House Finch Purple Finch Ruby-throated Hummingbird Mourning Dove American Robin Dark-eyed Junco White-throated Sparrow Song Sparrow Chipping Sparrow Red-bellied Woodpecker Northern Flicker Pileated Woodpecker Red-headed Woodpecker Yellow-bellied Sapsucker Red-breasted Nuthatch Brown Creeper Common Grackle Red-winged Blackbird Baltimore Oriole Rose-breasted Grosbeak Evening Grosbeak Pine Siskin Common Redpoll Indigo Bunting Eastern Towhee Gray Catbird Brown Thrasher Cedar Waxwing Tree Swallow Barn Swallow Eastern Phoebe Chimney Swift Yellow-rumped Warbler Pine Warbler Eastern Screech-Owl Great Crested Flycatcher Eastern Kingbird American Tree Sparrow House Sparrow European Starling Canada Jay Eurasian Collared-Dove American Crow Common Raven Cooper's Hawk Sharp-shinned Hawk Red-tailed Hawk Barred Owl Great Horned Owl American Kestrel Wood Duck Wild Turkey Northern Bobwhite Mallard Great Blue Heron Belted Kingfisher Scarlet Tanager Eastern Meadowlark Golden-crowned Kinglet Hermit Thrush Winter Wren Pine Grosbeak Red Crossbill Field Sparrow Gray Catbird Lark Sparrow Hooded Merganser Yellow Warbler Common Yellowthroat American Redstart Black-and-white Warbler Prothonotary Warbler Ovenbird Yellow-breasted Chat Palm Warbler Red-eyed Vireo Warbling Vireo Eastern Wood-Pewee Least Flycatcher Cliff Swallow Northern Rough-winged Swallow Bank Swallow Common Nighthawk Eastern Whip-poor-will Canada Goose American Coot Killdeer Spotted Sandpiper American Woodcock Green Heron Great Egret Black-crowned Night Heron Turkey Vulture Osprey Bald Eagle Red-shouldered Hawk Merlin Peregrine Falcon Northern Saw-whet Owl Black-backed Woodpecker Savannah Sparrow Swamp Sparrow Vesper Sparrow Snow Bunting Lapland Longspur Horned Lark Dickcissel Common Redpoll Hoary Redpoll White-winged Crossbill Bohemian Waxwing Yellow-billed Cuckoo Bobolink Yellow-headed Blackbird Brewer's Blackbird Rock Pigeon

Sources

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.