英语语法分析

To this day, two of the escapees have never been found.

直至今天，还有两位越狱者没有被发现。

Question: What is the most common mistake the "escapees" make?

问题：“逃跑者”所犯的最普通的错误是什么？

Such escapees are relatively common wherever pet birds are kept.

在养宠物鸟的地方，这种“逃亡者”比较常见。