popinjay vs psittacine

popinjay

noun

  • A parrot. 

  • The green woodpecker, Picus viridis. 

  • A target to shoot at, typically stuffed with feathers or plumage. 

psittacine

noun

  • Any bird in the order Psittaciformes: a parrot. 

adj

  • Of or pertaining to parrots. 

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