i've got twin girls, about 6 weeks old whose mum decides when they feed, she shouts when its teatime and they come running but the rest of the day she's miles away grazing and they stay close to the shed and cause havoc so anyway the point I'm trying to make is that the way they are going they will be weaned in a few weeks. Just keep an eye on how often they feed off mum, how much water they drink etc and are they grazing.