A bird perches on a bare high power line and nothing happens to the bird. A man standing on the ground touches the same line and gets a fatal shock. Why?

Explanation

When a bird is perched on a bare high power line, the circuit does not get complete between the bird and the earth, therefore nothing happens to the bird. When a man standing on ground touches the same line, the circuit between the man and the earth gets completed. As a result, he gets a fatal shock.