Question

What Happen sparrows are harmful in China

Answer 1

The problem with the Great Sparrow Campaign became evident in 1960. The sparrows, it seemed, didn't only eat grain seeds. They also ate insects. With no birds to control them, insect populations boomed. Locusts, in particular, swarmed over the country, eating everything they could find — including crops intended for human food. People, on the other hand, quickly ran out of things to eat, and millions starved. Numbers vary, of course, with the official number from the Chinese government placed at 15 million. Some scholars, however, estimate that the fatalities were as high as 45 or even 78 million. Chinese journalist Yang Jisheng, who chronicled the famine in his book "Tombstone," estimates the deaths at 36 million people. (The book, published in the U.S. last year, is banned in China.)
But the people did not go down quickly or easily. "Documents report several thousand cases where people ate other people," Yang told NPR last year. "Parents ate their own kids. Kids ate their own parents." The behavior was so awful — with thousands of people murdered for food or for speaking out against the government — that the topic of what has become known as the Great Famine remains taboo in China more than 50 years later.