The displacement activity, the grooming, the straightening of its feathers, seems to be an irrelevant behavior.

替换活动，如梳理、拉直羽毛，似乎都是无关的行为。

youdao

The displacement activity, the grooming, the straightening of its feathers, seems to be an irrelevant behavior.

替换活动，如梳理、拉直羽毛，似乎都是无关的行为。

youdao