What bird's tail is white in the middle and black on both sides?

Silver-throated long-tailed tits move quickly and suddenly, often jumping between tree crowns. A bird with a white border and a black tail in the middle of its tail is a silver-throated long-tailed tit. Silver-throated long-tailed tits are mainly distributed in Northern Europe and Asia, and in China, they are mainly distributed in Northeast China, North China, Central China, East China and Southwest China. They are common in other areas except Tibet. This species lives in coniferous forests and mixed forests in mountainous areas, but it can also be found in hills and plains in winter.