TaxonHub
Brown-headed Cowbird

Brown-headed Cowbird

Molothrus ater

A small, brood parasitic passerine bird native to North America, known for laying eggs in other birds' nests and not raising their own offspring.

Image Gallery

Brown-headed Cowbird
Brown-headed Cowbird
Brown-headed Cowbird
Brown-headed Cowbird
Brown-headed Cowbird
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Ecology & Habitat

Habitat

Widespread across open woodlands, grasslands, agricultural areas, forest edges, and urban landscapes throughout North America, from Canada to Mexico

Ecological Role

Key brood parasite that influences host species' reproductive success, plays a significant role in ecosystem dynamics and bird population interactions

Morphology

  • SKIN COAT Sleek, iridescent black plumage on body with contrasting brown head in males
  • LIMBS WINGS Short, strong legs adapted for ground foraging; broad, pointed wings enabling agile flight
  • HEAD SENSORY Males have distinctive glossy brown heads, females are plain grayish-brown with subtle plumage variations
  • BODY STRUCTURE Compact, medium-sized blackbird approximately 19-22 cm in length, weighing 40-50 g, with a sturdy, conical beak
Data Source: TaxonHub Database
Image Credit: Paul Danese
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Related Species in Icteridae