Eagle vs barred owl

Eagle

noun
  • An Eagle Scout. 

  • An advancement to the Eagle Scout rank. 

name
  • A city in Alaska. 

  • A village in Nebraska. 

  • A town, the county seat of Eagle County, Colorado. 

  • Any of a number of rivers in the United States and Canada. 

  • The Apollo Lunar Module of Apollo 11. 

  • A city in Idaho. 

  • A village in Michigan. 

  • A town in New York. 

  • A village in Wisconsin. 

  • A village in Eagle and Swinethorpe parish, North Kesteven district, Lincolnshire, England (OS grid ref SK8767). 

  • A surname transferred from the nickname, from the name of the bird as a byname. See eagle. 

barred owl

noun
  • A large American owl (Strix varia) with dark brown transverse bars on the breast. 

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