kingfisher vs kotare

kingfisher

noun
  • common kingfisher (Alcedo atthis) 

  • Any of various birds of the suborder Alcedines (or the family Alcedinidae sensu lato), having a large head, short tail and brilliant colouration; they feed mostly on fish. 

kotare

noun
  • The kingfisher Halcyon sancta 

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