When B molts, it's an excellent time to study her feathers.
The one on top is a remex (pl. remiges), a feather from B's right wing. You can tell because the feather is asymmetrical, with the leading edge being narrower than the trailing edge.
The middle is a contour feather, most likely from somewhere on her front.
The bottom is a rectrix (pl. rectrices), from her tail. It's more symmetrical and has a more square appearance.
Feathers are so specialized... it's really pretty amazing. Even more amazing is the fact that B seems to be able to control each of her feathers individually.
Flight feathers are actually very stiff. Lilo (the dachshund) likes to chew on feathers when she finds them. Thankfully, Lilo finds individual feathers more interesting than the ornery strong-beaked cockatoo from whence the feathers came.
