What is the collective noun for flamingos?

The collective nouns for flamingos are:

  • a stand of flamingos
  • a flamboyance of flamingos
  • a colony of flamingos
  • a flock of flamingos
  • a flurry of flamingos

Flamingos are birds, why wouldn't you just use "flock"?

(Most lists of collective nouns are bogus in the sense that most of them were made up to be "cute" and nobody actually uses them in real life.)