? Cuckoo doesn't build nests or hatch eggs, so it lays eggs in other birds' nests. In order to make the number equal, it will take away the other eggs and throw them away. This time, the cuckoo laid the eggs in the mother thrush's nest. After the cuckoo was floated away by the thrush mother, the cuckoo wanted to eat more food and get more care. When his mother went out hunting, he pushed the little thrush out of the nest and died. Through careful observation and scientific reasoning, Mike Fox found that the murderer was the little cuckoo hiding in the mother thrush's nest.

When I read this story, I thought, who is so cruel? Push a newborn thrush out of the nest? How sad it will be for the female thrush to drop the little thrush one by one! I was surprised when I knew the answer. The three-character scripture says: "At the beginning of life, human nature is good." . But how did this cuckoo become so bad at birth? So many children of the mother thrush have lost the chance to live, but the only child alive is not her own little thrush, but a cuckoo. How sad the female thrush should be!

I think in the world of birds, we should have the ability to distinguish our own eggs from other people's eggs, so as to prevent our children from losing their lives one by one, while other people's children are alive.