The south likes to use bamboo poles, while the north uses wooden poles. But most bamboo poles are too small in diameter to be suitable for thrush birds. The wooden pole is relatively thick, and the thickness can be selected according to the size of the bird's paw. Generally, the diameter is about 13mm. Some wooden poles are made of branches with skins, and some are peeled off and carved with straight lines and irregular lines; There is a layer of fine sand on the stripped wooden pole, which is called sand pole. Comparatively speaking, it is better to use sand sticks, which can play the role of grinding bird's beak and claw toes. However, because birds often turn over or jump in cages, sand bars will rub the tail feathers, making the tail slightly serrated, which hinders viewing. In addition, it is better to choose a straight bar than a curved bar. The straight pole can make the bird stand stably, especially when singing, and keep its body balanced.