plumage vs vibrissa

plumage

noun
  • Layer or collection of feathers covering a bird’s body; feathers used ornamentally; feathering. 

  • Finery or elaborate dress. 

vibrissa

noun
  • Any similar feather near the mouth of some birds. 

  • The thick hairs found inside the nostrils of humans and other mammals. 

  • Any of the tactile whiskers on the nose of an animal such as a cat. 

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