> Perhaps one of the batponies would be willing to disguise themselves as you while you slip away safely?

You proceed to explain Operation: Changeling to the bat ponies:

Decoys will be simultaneously released at points twelve o’clock and three o’clock, to draw and hold the attention of your diabolical doppelgänger. They are not to engage the target, but rather to lead her a merry chase while you sneak away unseen.

Once the filly realizes you’ve escaped, you feel certain that she will give chase, leaving the colony undisturbed and able to come and go as they please. Win-win!

The leader agrees to attempt your plan, and in recognition of your service to the colony, offers you the use of her bravest warriors.