Bird · GBIF taxon 2484391
Molothrus ater
molothrus aterAlso known as Cow Blackbird, Brown-headed Oriole, Buffalo Bird
Brown-headed cowbirds forage across open pastures and lawns, frequently following livestock to snatch insects stirred up by grazing hooves. As obligate brood parasites, females lay their eggs in the nests of over 200 other bird species, leaving host parents to incubate and raise the nestlings. Males showcase a liquid, gurgling song while performing dramatic bow-and-spread displays atop tall perches.
Brood ParasiteSongbirdMigratory
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & prey
- Grass Seeds
- Grain
- Insects
Predators
- Cooper's Hawk
- Domestic Cat
- Black Rat Snake
ThreatsTargeted control measures intended to protect endangered songbird hosts
HabitatsPastures, fields, forest edges, meadows, and suburban yards
Life span7 to 15 years in the wild
Size / weightNot available
Classification
- OrderPasseriformes
- FamilyIcteridae
- GenusMolothrus
- Speciesmolothrus ater
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Safe to observe at a normal distance.
Responsible observation
- Feeder Visits: Scatter white proso millet on low platform feeders or ground sites.
- Listening for Calls: Listen for the male's distinct squeaky-hinge call on spring mornings.
- Observing Behavior: Watch near grazing cattle or horses where birds actively hunt flushed insects.
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