A rounding problem with population

[capnq]

Just curious, when you get the event where a chunk of population leaves "looking for a better life", do they actually go to other provinces, or simply disappear?

[Humakty]

I've never seen the "looking for a better life" peons move into another province I controll (but maybe they do with no notification, I don't check every turn the pop in all my provinces(booh, lazy me)).
So we can suppose they all meet ravenous wolves during their travel to a better land.