红头潜鸭

例句：

1. 1. The red-headed diving duck is a common sight in the lake during summer.
   红头潜鸭是夏天湖中常见的景象。
2. 2. Red-headed diving ducks are known for their distinctive red heads and graceful swimming skills.
   红头潜鸭以其独特的红色头部和优雅的游泳技巧而闻名。
3. 3. The red-headed diving duck is an important indicator of the health of the water environment.
   红头潜鸭是衡量水域环境健康状况的重要指标。