在秋季后期，我们如果主要是利用头部全白与否来分辨这两种，那就很难排除那些换羽较迟的织女银鸥个体。

In the late autumn period, it may be more difficult to rule out late - moulting Vega Gulls if we are to use "white heads" as our main method of separating the two.

youdao

在秋季后期，我们如果主要是利用头部全白与否来分辨这两种，那就很难排除那些换羽较迟的织女银鸥个体。

In the late autumn period, it may be more difficult to rule out late - moulting Vega Gulls if we are to use "white heads" as our main method of separating the two.

youdao