Duck vs Turtle

Duck

name
  • An unincorporated community in West Virginia. 

  • A surname transferred from the nickname. 

  • A town in North Carolina. 

Turtle

name
  • An extinct town in Dent County, Missouri, United States. 

  • A river in Saskatchewan, Canada. 

  • A surname, thought to be derived from the turtle dove. 

  • A town in Rock County, Wisconsin, United States. 

noun
  • A member of the Ancient and Honorable Order of Turtles, a drinking club. 

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