Just a few passerines, such as the European Starling, "are capable of learning songs later in life".
但是有一种欧椋鸟却是可以在成年以后也能继续学习唱歌的。
2
In this experiment, phylogenetic relationships of 18 species of passerines were studied using Adenylate Kinase Intron 5 (AK5) sequences and DNA techniques.