I have a pullet called Steve who was our first layer. I started free-ranging them a couple of weeks ago, now that they are bigger than my cats & Steve has started complaining about not being let out enough to suit her. She's crafty too. She sings an egg song to get me to come out & if I don't the egg song gets angrier until she sounds a bit hoarse. This afternoon I called the pullets to get back in the run so that I could go out & Steve didn't make an appearance. I found her lounging in their newly made dust bath (in my garden bed) like she was at a spa & not in the least worried that she was alone.
When we had a flock composed of Barred Rocks and Black Stars they learned to get us out to them muy pronto by making the distress calls of the sort one expects when a predator is right outside the run - or possibly in it.