graylag是什么意思

n.[鸟]灰色雁(雁的一种)

1、It was the strangest thing, a graylag Indian departing with a gently mocking, quizzical smile, and a small African grey scampering after him.
这真是件奇怪的事，一个灰雁印第安人满脸嘲讽、疑惑的微笑离开，一只小非洲灰喜笑颜开地追在后面。
2、In the tidal flats area, typical birds such as cattle egret, little egret and graylag goose could both breed and feed.
在潮间带地区可以看到典型的鸟类，如牛背鹭、小白鹭和灰雁，它们既能繁殖也能觅食。

灰雁；灰雁这一名称源于其种内灰色的羽毛。