chicken scratch vs hieroglyphics

chicken scratch

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

  • Cramped or illegible handwriting. 

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

hieroglyphics

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