New Mexico · Year-round resident

Brown-headed Cowbirds in New Mexico

When cowbirds are present in New Mexico, when they nest, which native New Mexico plants feed them, and how to host them in a USDA 4b–9a yard.

Blackbirds (Icteridae)Brown-headed CowbirdMolothrus ater

Status in New Mexico: Year-round resident
Nesting window: April–July
Broods: —
Hardiness zones: USDA 4b–9a

When to expect cowbirds in New Mexico

Brown-headed Cowbirds live in New Mexico all year. Cold nights and sunny days; many desert and mountain birds move to lower elevations. That makes the cold months the time your yard matters most to them.

Arid to semi-arid, with Chihuahuan desert in the south and mountain forest above 7,000 ft.

Nesting in New Mexico

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

Hot, dry early summer followed by the July–August monsoon.

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

Native New Mexico plants that attract cowbirds

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

Wild bergamot

Monarda fistulosa · Perennial

Tubular flowers for hummingbirds and seed heads for finches.

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.

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.

Rocky Mountain bee plant

Cleome serrulata · Perennial

Nectar-rich in summer, seed for finches in fall.

Rabbitbrush

Ericameria nauseosa · Shrub

Late-season bloom supports insects; seed for sparrows.

Prickly pear

Opuntia engelmannii · Shrub

Fruit and seed plus nest sites for Cactus Wrens.

Feeding cowbirds through the New Mexico year

Top foods: Millet, Cracked corn.
In New Mexico's winter: Cold nights and sunny days; many desert and mountain birds move to lower elevations.

Full diet breakdown for cowbirds · Best feeder for cowbirds

Frequently asked

Are cowbirds in New Mexico year-round?

Yes. Brown-headed Cowbirds are year-round residents in New Mexico.

When do cowbirds nest in New Mexico?

Nesting in New Mexico 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 New Mexico?

Wild bergamot, Black-eyed Susan, Common sunflower, Little bluestem, Tall goldenrod, Rocky Mountain bee plant, Rabbitbrush, Prickly pear are native plants in New Mexico that provide food or cover for cowbirds.

Other backyard birds in New Mexico

Northern Cardinal Black-capped Chickadee Downy Woodpecker Hairy Woodpecker American Goldfinch White-breasted Nuthatch House Wren House Finch Mourning Dove American Robin Dark-eyed Junco Song Sparrow Chipping Sparrow Northern Flicker Red-breasted Nuthatch Brown Creeper Common Grackle Red-winged Blackbird Evening Grosbeak Pine Siskin Indigo Bunting Painted Bunting Gray Catbird Northern Mockingbird Cedar Waxwing Tree Swallow Barn Swallow Yellow-rumped Warbler House Sparrow European Starling Steller's Jay Woodhouse's Scrub-Jay Black-billed Magpie Mountain Chickadee Bushtit Juniper Titmouse Pygmy Nuthatch Anna's Hummingbird Black-chinned Hummingbird Broad-tailed Hummingbird Costa's Hummingbird Lesser Goldfinch Cassin's Finch Spotted Towhee Canyon Towhee Gambel's Quail Western Bluebird Mountain Bluebird Say's Phoebe Black Phoebe Gila Woodpecker Ladder-backed Woodpecker Cactus Wren Curve-billed Thrasher Verdin Pyrrhuloxia Bewick's Wren White-crowned Sparrow Violet-green Swallow Black-headed Grosbeak Lazuli Bunting Bullock's Oriole Eurasian Collared-Dove White-winged Dove Inca Dove American Crow Common Raven Cooper's Hawk Sharp-shinned Hawk Red-tailed Hawk Great Horned Owl American Kestrel Wild Turkey Mallard Great Blue Heron Belted Kingfisher Eastern Meadowlark Ruby-crowned Kinglet Golden-crowned Kinglet Hermit Thrush Red Crossbill Gray Catbird Western Tanager Hooded Oriole Phainopepla Black-throated Sparrow Lark Sparrow Green-tailed Towhee Pinyon Jay Western Screech-Owl Hooded Merganser Band-tailed Pigeon Yellow Warbler Common Yellowthroat Yellow-breasted Chat Orange-crowned Warbler Warbling Vireo Western Kingbird Scissor-tailed Flycatcher Vermilion Flycatcher Ash-throated Flycatcher Cliff Swallow Northern Rough-winged Swallow Bank Swallow Common Nighthawk Canada Goose American Coot Killdeer Spotted Sandpiper Green Heron Black-crowned Night Heron Turkey Vulture Osprey Bald Eagle Merlin Peregrine Falcon Northern Saw-whet Owl Barn Owl Burrowing Owl Lewis's Woodpecker Savannah Sparrow Vesper Sparrow Horned Lark Blue Grosbeak Varied Bunting Cactus Wren Greater Roadrunner Yellow-billed Cuckoo Yellow-headed Blackbird Brewer's Blackbird Great-tailed Grackle 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.