This is Not-Dave. She is sitting on some stolen chicks. She looks a lot like her mother Dave (Josie did the naming.) Dave is part Banty hen and she raises a gang of chicks almost every year. Dave refuses to stay in the chicken coop and generally makes a nest amid the hay. Which is probably where she was when I took these pictures of Not-Dave.
Evidently two eggs hatched before the rest. And Not-Dave has the chicks while Dave continues to sit on the rest of the eggs.