BH used to leave a group of ewes with a tup all through the summer, just to see when we'd get the first lambs.
Up until starting to use a Charollais tup, and keeping lots of his ewe lambs on, the earliest we ever got lambs was one lamb 4th Jan one year, otherwise it was usually end of Jan/early Feb before we got any.
The Charollais definitely come cycling much earlier, so now we have to keep a much tighter check on where the tups are, and segregate any remaining tup lambs, much earlier.

We can manage a few earlies, as we have a few spaces indoors we can house them if need be, but in general it needs to be March before we get any real number of lambs, or we'll lose a lot in a bad year.
This year we had a couple of tups out (neither of which Charollais) with a small number of ewes from 20th Sept. But there was no real action until mid-Oct, when the weather turned much much colder.
So we'll be lambing from mid-March - and it'll be a protracted one, we had one tup firing blanks, and the batch he failed to stop have just had a mishap and quite a few are returning to their new tup yet again.

Every year is different!
