We have also shown the tail feathers are in a different configuration than previously have been thought, that instead of being just a lollypop, single blade, there's actually two feathers that stick out pretty far on the end of tail.

我们还展示了尾羽结构与之前想象，仅仅是棒棒糖、单叶片，实际上有两根羽毛在尾部末端伸出很远。