This is awesome.
I have a chicken that is... shall we say, a bit more adventurous and independent than her flockmates. She regularly comes to the back door to either beg for food or simply to "self-serve" from the bin of chicken feed in the shed. She doesn't leave the property (luckily) but she'll walk the entire perimenter up until the end of the driveway at the street. Maybe I should get her something similar.