1. The gyrfalcon is known for its incredible speed and agility in flight.
雪隼以其飞行速度和灵活性而闻名。

2. We were lucky to spot a gyrfalcon perched on a cliff during our hike.
在我们徒步旅行时，我们很幸运地发现一只雪隼栖息在悬崖上。