(one's) (hand)writing is like chicken scratch

One's handwriting is very poor, messy, and/or illegible, likened to the marks made in the dirt by a chicken. I can't understand these notes at all, your handwriting is like chicken scratch!

Common Names:

Name	Pronounced	Usage
Damir	DAH-meer (Croatian, Serbian)	Croatian, Serbian, Slovene
Eveline	EV-ə-leen (English), EV-ə-lien (English), ay-və-LEE-nə (Dutch), ay-və-LEEN (Dutch)	English, French, Dutch
Argyris	-	Greek
Hila	-	Hebrew
Ermintrude	-	English (Archaic)
Jerrie	JER-ee	English