Question

A bird perches on a pair high power line and nothing happens to the bird why where is a man gets a fatal shock

Answer 1

Electricity flows along the path of least resistance. Birds are NOT good conductors of electricity, which is why they rarely get electrocuted. But, humans ARE good conductors of electricity. That is why we get electrocuted whereas birds don't.
SHOCKING!
(Sorry for the pun xD
Hope this helped!)