Our bantam barred rock is now 6 weeks old. We hope she's a she. Her flockmates, who are buff brahma bantams and red stars, are fully feathered out (you can see one of their butts in the photo). She's still very patchy. She seems very healthy, energetic, and active, so I don't think it's a health issue. After reading that one of the signs of roo-ness can be delayed feathering, I'm starting to wonder about her. Any thoughts?