A study has shown that reed warblers - a cuckoo host species - are less likely to attack more "hawk-like" cuckoos.

一项研究表明，苇莺攻击长得像鹰的杜鹃的几率比较少。

youdao

A study has shown that reed warblers - a cuckoo host species - are less likely to attack more "hawk-like" cuckoos.

一项研究表明，苇莺攻击长得像鹰的杜鹃的几率比较少。

youdao