wand vs watch like a hawk

wand

verb
  • To scan (e.g. a passenger at an airport) with a metal detector. 

noun
  • A hand-held narrow rod, usually used for pointing or instructing, or as a traditional emblem of authority. 

  • A stick, branch, or stalk, especially of willow. 

  • An instrument shaped like a wand, such as a curling wand. 

  • A card of a particular suit of the minor arcana in tarot, the wands. 

  • A stick or rod used by a magician (a magic wand), conjurer or diviner (divining rod). 

watch like a hawk

verb
  • To observe (someone or something) closely and keenly. 

How often have the words wand and watch like a hawk occurred in a corpus of books? (source: Google Ngram Viewer )