[Trying all the unique new foods she had never been able to eat back in the Underground wasn't necessarily the first thing Muffet did when they finally made it to the Surface, but it was probably in the top ten.]

Oh, I'm sure something does, seeing as how the island hasn't been overrun by colorful little balls of fluff by now. But hopefully whatever their natural predators are will catch on to us being too much trouble to be worth dealing with relatively quickly, and stick to going after the wild flocks instead of the ones we domesticate.

[She pauses thoughtfully, then adds:]

To be honest, I'm not entirely certain that these birds weren't already domesticated at one point. They seem surprisingly docile and unbothered by people, and I know we've seen old farmland around this place. It wouldn't surprise me at all if whoever left those ruins used to farm them, and then they got out into the wild and started breeding once... well, once whatever happened to those people happened.