Duck vs Monarch

Duck

name
  • An unincorporated community in West Virginia. 

  • A surname transferred from the nickname. 

  • A town in North Carolina. 

Monarch

name
  • An unincorporated community in Kanawha County, West Virginia. 

  • An unincorporated community in Cascade County, Montana. 

  • A hamlet in Lethbridge County, Alberta. 

  • An unincorporated community near Monarch Pass, Chaffee County, Colorado. 

  • An unincorporated community in Sheridan County, Wyoming. 

  • An unincorporated community in Lee County, Virginia. 

  • Two other peaks with the affix "mountain": Monarch Mountain (Alberta) and Monarch Mountain (British Columbia). 

  • A surname. 

  • The Monarch, a mountain in British Columbia. 

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