The black crow’s reciprocal feeding refers to the young black crow’s finding food to support its mother when it grows up. It refers to the filial piety of the younger generation in supporting their elders.

Sixty days, long will feed back sixty days. "It probably means that when the little black crow grows up, the old black crow can no longer fly and find food by itself. The little black crow will in turn find food to feed its mother. The novel about the black crow feeding back has been passed down orally from generation to generation. It has been known to many people that to some extent, the "feedback sentiment" lingering in people's minds is still a key force in moving society and families towards harmony, warmth and peace.

poetry "The bird in the forest is fed by its child." Su Zhe's poem also mentioned: "The horse is not aware of the distance to the southwest, so why does the bird fly day and night?" It is said that the black crow is fed by the mother bird. When the mother bird is too weak to find food, the young crows will feed it to the mother bird as a reward. Therefore, "the crow feeds back" and "the lamb kneels to breastfeed" become metaphors for the offspring's gratitude and filial piety to their parents.

The behavior of the black crow is worth learning.

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