calligraphy vs chicken scratch

calligraphy

noun
  • Any such style of decorative writing. 

  • A document written in decorative style. 

  • The art or practice of writing letters and words in a decorative style; the letters and words so written. 

chicken scratch

noun
  • Cramped or illegible handwriting. 

  • Chicken feed consisting of random mixed grains such as corn, wheat, barley, sorghum and milling by-products. 

  • A type of cross-stitch embroidery done on gingham fabric. 

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