Can anyone tell me what the dark (black?) patches on the leading edge of the wings were?

Can anyone tell me what the dark (black?) patches on the leading edge of the wings were?

Those are radar warning antennas. Two on the right wing, one on the left.
classic load out.
The “stuff” hit the fan over that load out, no pun intended. The crew involved in that did everything they could to hide it right up to the catapult. Biological warfare? If I remember correctly there is a 1/72 scale kit that has the toilet included.
Never heard where or who that piece of porcelain got dropped on.
An educated guess says North Vietnam or Laos.
Okay… probably right. Was thinking maybe the admiral’s barge, but was looking for a more specific target.
Here’s a good account of it, along with original video.