rook·ery /ˈrʊkəri/
  白嘴鴉的群籮;企鵝
  Rook·er·y n.; pl. Rookeries
  1. The breeding place of a colony of rooks; also, the birds themselves.
  2. A breeding place of other gregarious birds, as of herons, penguins, etc.
  3. The breeding ground of seals, esp. of the fur seals.
  4. A dilapidated building with many rooms and occupants; a cluster of dilapidated or mean buildings.
  5. A brothel. [Low]
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  rookery
       n : a breeding ground for gregarious birds (such as rooks)