screech owl vs sniper

screech owl

noun
  • Any New World owl of genus Megascops. 

  • A common barn owl, of species Tyto alba, found almost worldwide. 

  • The mistle thrush (Turdus viscivorus). 

sniper

noun
  • A hunter of snipe (the bird). 

  • A person or automated process set up by a person who or which attempts to win an online auction by placing a bid only seconds before the auction ends, leaving no time for other bidders to respond 

  • One who shoots from a concealed position. 

  • A player who specializes in scoring goals. 

  • A person using long-range small arms for precise attacks from a concealed position. 

  • Any attacker using a non-contact weapon against a specific target from a concealed position. 

  • One who criticizes; a person who frequently snipes at others. 

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