"Well... if nobody wakes them up, they might oversleep and miss the start of spring," he says. "I guess they must figure it out somehow in the places where there aren't any ponies to help, but I don't know, I've only ever lived in Equestria. And bunny censuses are important for tracking the bunny population, obviously, so you can tell if there's a change that doesn't look right and might mean something weird is happening to the bunnies. Cordial could probably explain it better, she's the one who takes them."