Why don’t birds get electrocuted when sitting on power lines?

Birds don’t get electrocuted when sitting on power lines because their bodies do not create a path for electricity to flow to the ground. Electricity always follows the path of least resistance, moving from a higher voltage to a lower voltage. When a bird sits on a single wire, both of its feet are at the same electrical potential, meaning there is no voltage difference to push electricity through its body.However, if a bird touches two wires at once or one wire and a grounded object (like a pole or tree), it creates a pathway for electricity to flow through its body, leading to electrocution. This is why electricians working on power lines use insulated equipment and avoid creating a connection between different voltage levels.