カワアイサ

Meanings

1

common merganser; goosander

usually written using kana alone

A species of duck (Mergus merganser). The name is usually written in katakana as カワアイサ.

カワアイサは川かわや湖みずうみで見みられる大おお型がたの水みず鳥とりです。
The common merganser is a large waterfowl found in rivers and lakes.