These feathers were naturally molted by our beloved pet goose Tinker, who sleeps on our bed at night.  When she is molting I collect these tiny feathers in the mornings.  These are very small, though as you can see they vary in size and shape.  They are from the leading edges of her  wings.  These are not flight feathers but are, I think, called contour feathers.  They're perfect for making small figures like angels or of course birds.