Legends and stories about crows are good.

In folklore, the story of crow feeding back is the most touching one. Crow, a black and ugly bird, is generally hated by human beings because people think it is unlucky, but they have a virtue that really deserves our universal praise-caring for the elderly, and they can be regarded as a model among animals in caring for and respecting the elderly. It is said that this bird grew up under the care of its mother. When her mother was old and weak, unable to eat or blind and unable to fly, her children would look around for delicious food, bring it back to their mouths, and feed it mouth to mouth until the old crow died and couldn't eat any more. This is what people often say "the crow feeds back".