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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: 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
  • 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 | 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
  • 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
  • Why Do Cowbirds Lay Eggs in Other Birds’ Nests?
    Cowbirds skip parenting entirely by laying eggs in other birds’ nests Here’s the evolutionary logic behind this unusual strategy and what it means for songbirds
  • 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
  • All About Cowbirds (Molothrus sp. ) - Sialis. org: Info on Bluebirds . . .
    The Brown-headed Cowbird (Molothrus ater or BHCO, 3 subspecies) and Bronzed Cowbird (Molothrus aeneus – found in TX, NW and AZ) breed in the United States The Shiny Cowbird (M bonariensis) reached Florida in 1985 and was recently recorded breeding in North America (Sykes and Post, 2001)





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