Primary rainforest and evergreen forest still preserve more diverse species of birds, a clear dynamic of bird composition appears in the secondary bushy habitat.

• 热带雨林和常绿阔叶林维持着多样的鸟种；次生灌木林鸟类群落呈现动态发展的趋势；原始热带森林被毁坏后，经重建而成的人工林，特别是橡胶纯林中维持的鸟种类少，鸟类群落组合也简单。