军舰鸟

例句：

1. 1. The seagulls are a common sight in the harbor.
   海鸥是港口常见的景象。
2. 2. The sailors were delighted to see their favorite bird return.
   水手们很高兴看到他们最喜欢的鸟儿回来了。
3. 3. The seagulls often gather on the rocks near the water's edge.
   海鸥经常聚集在水边岩石上。