New chicken mom here - I have four six week old hens () living with my family on a 5,000 sq foot lot in Pacifica California. We successfully introduced them to our Pit Bull, who seems to think she’s their mother. Somehow I thought I would be able to train them to stay out of our garden . I’m looking for a 30’ retractable fence that I can use to keep them on the non-garden side of the yard. We’re pretty DIY and can take on a project but I really don’t want anything big or bulky or hard to operate. I found some driveway fences but they are only about 3 feet tall and I figure that’s not gonna be enough. My questions are: 1. How tall is tall enough? 2. Anyone know of a retractable fence or mechanism we can use to make our own?