Hello Richard,
another welcome from Lanarkshire (North Lanarkshire this time). I replied to your question about turnover crates without realising you were a new member.
I've got 44 sheep, a mixture of Hebrideans & Soays, with a tup for each flock. Only about 22 are breeding ewes, the others are either last year's lambs or older sheep. Being "primitive breeds", the lambs are slow growing & don't go for slaughter until their second year (as Hogget rather than Lamb). On the other hand, they are fairly low maintenance & not difficult to look after.
This means I really have four flocks - breeding Hebrideans, breeding Soays, last year's girls & the old ewes, and the boys field. Last year I left the boys intact, as an experiment, and so far it has been successful. They live together as a group & don't fight, although there is definitely a hierarchy within the group. I haven't finally made my mind up about what to do with this coming year's lambs.
Cheers,
John