I've started an online game of Wooly Bully (La Guerre des Moutons) 2 with the waterproof wings variant "on", but I'm not 100% sure how this rule plays out in practice.
The key line in the rulebook seems to be:
2 enclosed fields containing the same color of sheep separated by the same pond are considered a single enclosure.
But can you have a "superfield" of more than 2 enclosed fields joined together by ponds? What if a Wolf cancels out a field adjoining its Forest - does this cancel out fields of the same colour on the other side of ponds too? (Does the Wolf get water wings of his own, in other words?)