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cowbird    
n. 北美产的燕八哥

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  • Brown-headed Cowbird - All About Birds
    The Brown-headed Cowbird is a stocky blackbird with a fascinating approach to raising its young Females forgo building nests and instead put all their energy into producing eggs, sometimes more than three dozen a summer
  • Cowbird - Wikipedia
    Cowbirds are birds belonging to the genus Molothrus in the family Icteridae They are of New World origin, but some species not native to North America are invasive there, and are obligate brood parasites, laying their eggs in the nests of other species
  • What Is A Cowbird And Why Is It A Nuisance? - Southern Living
    Native to North America, the brown-headed cowbird (Molothrus ater) has a reputation for being destructive to the nests of other bird species, so many bird enthusiasts consider it a nuisance But is it really a backyard bird bully, or is the cowbird simply misunderstood?
  • Brown-headed Cowbird | Audubon Field Guide
    Centuries ago, the Brown-headed Cowbird probably followed bison herds on the Great Plains, feeding on insects flushed from the grass by the grazers Today it follows cattle, and occurs abundantly from coast to coast
  • 6 Types of Cowbirds: Identification with Pictures
    Cowbirds are fascinating members of the blackbird family, best known for their unusual breeding strategy called brood parasitism—though not all species follow this rule Spread across the Americas, these birds range from the small and glossy Shiny Cowbird to the large and powerful Giant Cowbird
  • California’s Invaders: Brown-Headed Cowbird
    Brown-headed cowbirds belong to the blackbird family, and can be distinguished from other blackbirds by their smaller size, shorter tail, and thicker head with a stout bill Brown-headed cowbirds range from 6 to 8 5 inches in length with a wingspan of 12 - 15 inches
  • Brown-headed Cowbirds - NestWatch
    Brown-headed Cowbirds are native to the United States and prefer open grasslands, as well as agricultural, urban, and suburban habitats where grain or cattle-disturbed soil are readily available Historically they followed herds of bison, eating insects kicked up by the animals’ hooves
  • Brown-Headed Cowbird: A Nasty Native Species - Birds and Blooms
    Learn why the brown-headed cowbird is many birders' least favorite—and how to tell cowbird eggs apart from those of other species
  • Brown-Headed Cowbird: ID, Habitat, Diet Breeding Facts
    Discover the brown-headed cowbird's unique brood parasitism, identification tips, habitat range, diet, and impact on other bird species across North America
  • Cowbird | Mimicry, Brood Parasitism, Nesting | Britannica
    Cowbird, any of five species of birds that belong to the family Icteridae (order Passeriformes) that are named for their habit of associating with cattle in order to prey upon insects stirred up from vegetation





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