This is one of the hummers around my feeders. I have given several of them names because of certain physical characteristics. There is Little Spike, Big Spike, Leopard, Mullet, Bano, of course; and there has been one I have called Muffler because of the odd whirring sound–different than all others. Now I understand why.
Capturing her on the roses today shows a distinct malformation of her wings. But she flies well. You just hear her coming a long way off!