cow·bird /-ˌbɝd/
  北美產的燕八哥
  Cow·bird n. Zool. The cow blackbird (Molothrus ater), an American starling. Like the European cuckoo, it builds no nest, but lays its eggs in the nests of other birds; -- so called because frequently associated with cattle.
  ◄ ►
  cowbird
       n : North American blackbird that follows cattle and lays eggs
           in other birds' nests