straying chickens

[Chicky 13]

is there a way other than a fence/wall of getting chickens to stay in my garden ? up until now they have remained where they are supposed to when free ranging but today my neighbor found them in her garden and then later in the day they again dissapeared and i found them on our driveway near the motorway.

 

[Chicky 13]

my sister claims they followed a stray cat