We generally aim to lamb in three weeks from 6th March. I shut up the turnout field at the end of September, so there's enough grazing for the first three weeks or so and the level of magnesium is likely to be high, due to slow growth, so avoiding staggers. Last year grass growth didn't get going until May, though, so we used all our hay stock and fed for a fortnight longer than usual. Our lambs go in mothering up pens for a couple of days, then get ringed, numbered and transferred to a nursery shed, where hey learn to stay with their dam and not cross-suckle, and are generally outside by day 4 to 6. In the past we once mucked out the shed and brought them back in for a couple of days when the weather has turned really vicious. Late lambing carries the risk of flystrike to lambs, especially those passing meconium in the first day or so - not something I ever want to deal with.