After I took care of the big chickens, and locked them in the main coop, I went into the little coop with the banty hen and babies. I changed their water and all that, then just stayed in there with them for a bit. The hen was standing there looking at me, and then she flew up and landed on my shoulder.

That's the first time any of them have ever done that, so I hardly moved so I wouldn't scare her off. She stayed there for a few minutes, and then flew down.
When she landed on the ground, she walked over to the door and wanted out. I opened the door and she went out into the run, followed by all four chicks. They did their normal stuff, but the hen also kept going to the pop door. I thought she wanted to take the chicks in there, so I opened it up again. She walked in, and flew up on the roost.
The chicks started to follow her in, but turned and went back to the small coop. They went to their usual roost, but were squawking the whole time. The hen just stayed on the roost, so I closed both coops and left them that way. It's the first night for the babies to be alone. They're almost as big as the hen, so maybe that's why she's done playing momma. I'm anxious to see how she acts in the morning, whether she goes out to free range with the adults or go back to the chicks.