If an older lamb from experience if eating cake and hay and drinking water nicely we woul d leave be, from the experience a lamb that had got in with another flock and then not retrieved til that flock was gathered (we did try to catch the little mite but couldnt) we tried to get her on the milk but all it did was make her scour lots, so then we had to solve that, so in hindsight regardless of size, if they ve weaned, no point going backwards. but a few weeks old, different situation, like sally i woul d persevere,tiny steps, i find that it takes three to four tries on average for them to get the jist, then we re away. not about forcing but mothering and cajolling xx