red-breasted merganser

• 红胸秋沙鸭（Mergus serrator），一种潜水鸭，分布于北美洲、欧洲和亚洲的北部地区，雄鸟头部呈深绿色、颈部有白色环带、胸部呈红褐色，并有蓬松的冠羽。

A species of diving duck (Mergus serrator) with a distinctive shaggy crest, found across northern regions of North America, Europe, and Asia. The male has a dark green head, white neck ring, and reddish-brown breast.

1. A species of duckC1formal

   A medium-sized diving duck with a long, slender red bill and a shaggy crest, known for its distinctive appearance and habitat in freshwater lakes and rivers.

   一种鸭

   • The red-breasted merganser is often seen in northern lakes during the summer.
   • Birdwatchers spotted a red-breasted merganser diving for fish in the river.
   • The male red-breasted merganser has a striking red breast and a greenish-black head.