这只跳岩企鹅的黄色羽冠在阳光下闪闪发亮。

The ___rockhopper's yellow crest feathers gleamed in the sunlight.

我朋友是个真正的攀岩爱好者，周末总能看到她在岩壁上。

My friend is a true ___rockhopper, always seen on the cliffs during weekends.