长期以来，国内对这两个亚科鸟类系统分类和演化的研究，一直采用传统的形态学、声学、动物地理学等方法，并多沿用郑作新分类系统（19942000）。
Studies about the phylogeny and evolution of two subfamilies birds have been based mostly on morphological , acoustical and zoogeographical characters in China , and continued to use the system of Cheng Tso-Hsin .
郑作新