head for the hills vs scarper

head for the hills and scarper both are verbs.

Word	Noun	Adjective	Verb	Adverb
head for the hills	No	No	Yes	No
scarper	No	No	Yes	No

As verbs, head for the hills and scarper are synonyms defined as:

Other synonyms of head for the hills include break away, bunk, escape, fly the coop, hightail it, lam, run, run away, scat, take to the woods, turn tail.

head for the hills (verb)	scarper (verb)
flee; take to one's heels; cut and run	flee; take to one's heels; cut and run