i can only figure that one perched on the line and the other came to perch beside it and touched the other from a different line which would electocute them both
maybe just the wings flapping as the 2nd came to land
probably a major cause of fatalities amongst eagles their wings are so large
or maybe it happened as they took off
each on a different line and when they spread their wings they momentarily touched
only has to be for a fraction of a second
might be the most likely
oddly light but heavy
body has some meat on
but basically just chickens in construction
claws and heads are really impressive !
rather sad really, i see the odd pair soaring around here .. .
interestingly the female is the bigger bird !
i'm not sure it wasn't a parent with a younger bird tho !
imo another cause of fatalities is hunters leaving prey they have shot with lead bullets out, especially the guts as the lead fragments from the bullets move easily through the softer tissue
these eagles also eat carrion and if they eat that they can get lead poisoned as their gizzards grind the lead right up into tiny, better absorbed fragments.
it's a big issue in the U.S.A!
lead bullets should be banned and only solid copper bullets for rifles allowed !