colony vs rookery

colony

noun
  • A group of organisms of same or different species living together in close association. 

  • A local group of Beaver Scouts. 

  • A group of people, of one nationality, ethnic group, or language, residing in a different country, city, or area; the area such people occupy. 

  • A group of people with similar interests, occupations, or characteristics, living in a particular area; the area such people occupy. 

  • A potential new chapter of a fraternity or sorority awaiting official recognition from their headquarters. 

  • A group of bacteria, fungi or other cells cultured together, especially from a single cell. 

  • A group of people who settle such an area and maintain ties to their native country, and (later) their descendants. 

  • An area under the political control of another country and typically occupied by settlers (colonists) from it, or by their descendants. 

  • An apartment complex or neighborhood. 

rookery

noun
  • A colony of breeding birds or other animals. 

  • A place where criminals congregate, often an area of a town or city. 

  • A crowded tenement. 

How often have the words colony and rookery occurred in a corpus of books? (source: Google Ngram Viewer )