Years when we lambed our Swaledales first-timers outside we had hardly any mothering issues. Years we lambed them indoors we had
way more. Many, many of them needing to be held for the lambs to suck for the first day or two. Some getting violent with the lambs, even a couple of lambs killed and quite a few where we had to keep the lamb apart from the mother (when we weren't there) until she'd taken it properly - as you do sometimes with fostering.
I have two theories about this. My first is that these wily hill sheep do what comes naturally when they are in a natural situation. Forcing them to be indoors, lambing where
we say they shall lamb, and cooping them up with their lamb(s) in a tiny box, is a very
unnatural situation and the stress of this overrides their natural mothering instincts. In the 'wild', they'd select a spot to lamb many days ahead of lambing, usually well away from other sheep, and drop their lambs quietly there. Even if they run away from the lambs at first, they know where they are and keep coming back. Eventually strong lambs get onto the teat and all is well.
My second theory is that, since we were only lambing shearlings indoors because the conditions outside weren't suitable for inexperienced mothers - the lambs would have perished before a nervy new mum settled and let them suckle - then by definition it was a year in which there would be a high lamb mortality. With a breed like Swales, the mothers are brutal in preserving their genes. So a Swale mum
will abandon a weak lamb,
will sacrifice one twin to preserve the other and even
will leave her only lamb to a predator if the predator is clearly otherwise going to kill the ewe - and this is the way her genes survive.
I could never not make a ewe take her lamb(s), but I did come to realise that sometimes a ewe knew things I didn't and knew that either one or both lambs weren't fit to survive and/or that she herself was not fit enough to rear this lamb or lambs.
Blackface I assume is similar in these respects to Swaledale, being another hardy hill breed that's survived on the hills for many many generations.
So I wouldn't mark this ewe's card just yet. Give her support to help the lambs feed until you are sure they are feeding unaided, and now that she is penned, keep her penned until you are sure they are mothered up. If she does a good job from thereon, of course watch her next year but my prediction would be she is fine next time around
