As a troubleshooter of 36 years I see lots of bad info and some good. I'd guess those towers are about 120' tall but that depends and is difficult to tell from the pic. It does look like 230kV. Don't even think about trying to get the drone off yourself. On transmission lines like that even just doing damage to 1 strand of the conductor will require major work to repair and besides by law you must adhere to the (edit) minimum approach clearance.
On that tower there are two circuits, each with 3 phases (A,B, & C which can be in any order) and in general to work the line they would de-energize one circuit, ground it and remove the drone by hand. Not something you want to pay for. If it's on the static wire chances are they 'd bring out a tall bucket and use a long hot stick to knock it off w/o having to de-energize either circuit. They might do this on a hot phase as well but would depend if it's safe to do so. Mylar balloons & kites are a PITA to us and I've had to remove many over the years. Luckily it doesn't look as if the wire is damaged. It won't be long before they patrol the line and find it. What happens after that is up to the company. At least for me I had a boss that let me decide if the customer is going to be charged but when you get a crew involved that's were the bucks are looked over. Our crews run over a 1000 dollars an hour and the same for the equipment. Try not to get stuck with that. Better to let them knock it to the ground. At least notify them there seems to be something hanging on a wire and might fall off and hurt somebody on the ground. Whether you tell them it's yours... hopefully the troubleshooter or patrolman isn't a drone hater.
And about birds landing on a hot phase at 70kV, well only some of the larger thick skinned birds can handle it and most stay well clear. Over 70kV most birds can't land on it unless the line is dead. Where they get in trouble is standing on the structure and making contact with a energized phase. Sometimes they can handle the Static line as it isn't energized. It is usually at ground potential but can still supply a heavy jolt if either circuit is hot. Did the wind ever knock it off or is it still up there? The longer it stays there the more chance it can cause wire damage to the strands due to vibration.
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