我们看见一只巨大的胡兀鹫在高空盘旋，准备将骨头扔向岩石。

We saw a huge ___lammergeier soaring high, ready to drop bones onto the rocks.

在高山生态系统中，胡兀鹫是关键的腐食动物。

The ___lammergeier plays a vital role as a specialized scavenger in alpine ecosystems.