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cowbird    
n. 北美产的燕八哥

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  • Brown-headed Cowbird - All About Birds
    Basic Description 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
    The cowbird is native to North America, and many birders consider it a nuisance Learn about the destructive bird and how to keep it out of your yard
  • 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
  • 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
  • TPWD: Brown-headed Cowbirds
    Today, brown-headed cowbirds occur throughout the United States Cowbirds evolved to follow herds of grazing animals, often covering many miles in a day They can little afford the time to build their own nests, lay and incubate eggs, and care for the chicks
  • 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
  • 3 Types of Cowbirds (Molothrus) seen in North America - North American . . .
    The cowbirds are parasitic birds who lay their eggs in the nest of other types of birds and abandon them, leaving the eggs to be hatched and raised by the unaware parent birds of the nest
  • Brown-Headed Cowbird - Facts, Diet, Habitat Pictures on . . . - Animalia
    The Brown-headed cowbird (Molothrus ater) is a sturdy blackbird with an unusual approach to parenthood Females do not build nests but use all their energy for producing eggs, sometimes over three dozen per summer





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