Why Don't Birs Get Electricuted When They Land on Electrical Wires?

Mika von skalkwag asked why birds don't get electrocuted when they land on electrical wires. Doctor Chrismas explains that an electrical wire is a high voltage potential compared to the negative wire, or the earth. To be electrocuted, you have to have electricity flowing through you from that high potential to the low potential. But because the bird is just staying where it is on one part of the cable, there is no potential difference between the bird and the cable,. Therefore there's no flow, therefore there's no current, and therefore the bird is absolutely fine.