Woodpecker about 2000 million years ago in the world, the existing 200, the distribution of a wide range of almost all the forest around the world.It is the scale of arboreal birds.

• 啄木鸟大约2000万年前开始在全球出现，现有200种，分布范围很广，几乎世界各地森林都有.；它是树栖的攀禽。