(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
Gazsi	GAW-zhee	Hungarian
Fawziya	-	Arabic
Ya	-	Chinese
Ziska	TSIS-kah	German
Payam	-	Persian
Ljubomir	-	Croatian, Serbian, Macedonian