Foreigners like crows and think crows are lucky. Most people in China don't like crows, but from the perspective of dream interpretation, dreaming of crows is still a good thing. However, when the number of crows is rich to a certain extent, it will inevitably indicate certain risks, such as: crows flying in groups caused by bad weather, ecological destruction, sudden emergence of a large number of insects, crows flying in groups to prey, or natural disasters, which may all lead to crows' nervousness.