The Guardian writes Animals see power lines as glowing, flashing bands, research reveals.
"Power lines are seen as glowing and flashing bands across the sky by many animals, research has revealed. The work suggests that the pylons and wires that stretch across many landscapes are having a worldwide impact on wildlife. Scientists knew many creatures avoid power lines but the reason why was mysterious as they are not impassable physical barriers. Now, a new understanding of just how many species can see the ultraviolet light – which is invisible to humans – has revealed the major visual impact of the power lines."
This would freak me out too.