They actually rely on their daylight vision and cannot fly during the night with no moonlight.

实际上，它们依靠的是昼视觉，在没有月光的夜晚则无法飞行。

youdao

They actually rely on their daylight vision and cannot fly during the night with no moonlight.

实际上，它们依靠的是昼视觉，在没有月光的夜晚则无法飞行。

youdao