Utilities do expect their equipment in the field every several years, including physical measurements of things like poles. As well as checking power lines for

Utilities do expect their equipment in the field every several years, including physical measurements of things like poles. As well as checking power lines for foliage interfering with the conductors. They will also go out and check things in response to complaints. But this is a hard one. If you go out and there's no birds, you haven't learned anything. You're probably going to suspect it's something weird with the transformers or something.