.
The other problem there was a "Green Pig farm" and foxes used to steal piglets quicker than a kid could eat Smarties. Several times I shot a fox carrying a piglet.in broad daylight. I wouldn't want to kill every fox but as the old saying goes "The last mammals left on earth will be the fox and the rat, who will eat who?"
100% agree with you about outdoor pig units. They're an absolute magnet for foxes.
. Foxes would come from the low ground areas and take first born lambs while the ewe was birthing the second. The next morning the second born were always alive and mobile not dead as Tim described. Usually the dead things were a fox and sometimes the first lamb.
What reason have for supposing that it was the first lamb, not the second, that was predated?
I think it's a common misconception that whenever a lamb is predated out of a set of twins it's the first one that's taken because the ewe was distracted while having the second.
If you understand sheep behaviour, you'll understand that it is most likely to be the other way around, but if you have evidence to support the idea that it's the first one that gets taken I'd be interested to hear it.
As I'm on a bit of a roll here, discussing my all-time favourite subject, I'll give you an interesting example of how a small difference in flock management can make a big difference to fox predation levels.
It's a genuine example, and I know the two farms well.
The two farms are neighbours. In fact their lambing fields are adjacent to one another. The same foxes do the rounds of both farms every night.
Both farms have the same breed of sheep, lambing outdoors at the same time of year. Feeding regime for the two flocks is pretty much the same.
During the lambing period, neither flock is checked at night, but both are checked at frequent intervals throughout daylight hours.
At lambing time, the shepherd on farm 1 has a fairly low intervention approach. When he sees a ewe in the process of giving birth he keeps her under observation from a distance. Even if the labour is prolonged, he leaves the ewe to get on with it on her own. Only once she's given birth, got to her feet and licked the lamb(s) does he approach to check her over (eg, check her udder), check the lambs and apply iodine to their navels. The only time he intervenes in the birth is if it becomes evident that there's a serious problem.
On farm 2 the shepherd takes a more proactive approach. When he sees a ewe in the process of giving birth he'll catch her and assist the delivery rather than leaving the ewe to struggle for a prolonged period. As soon as he's delivered the lambs he does the necessary checks, sprays the lambs navels and leaves the ewe to mother them
Farm 1 does not lose any lambs to foxes, whereas farm 2 loses a significant number, despite the shepherd on farm 2 being adamant that he's doing what's best to increase the chances of lamb survival. What he's doing is considered fairly normal practice. So what's wrong?
Well think about it:
Firstly he's had to catch the ewe in labour, which often involves a chase with the quad. So by the time he's caught her she's exhausted and stressed. Not a good start.
Secondly, in the process of catching her he's moved her away from the place she had chosen to give birth. So the territorial instinct that would lead her to defend that spot against predators has been disrupted.
Thirdly, in delivering the lambs he's placed the ewe at high risk of infection and / or retained placenta. Even a mild infection can reduce maternal instinct and reduce milk yield, leaving the lambs hungry and vulnerable.
Fourthly, by delivering the lambs before the ewe was properly ready and sufficiently opened up he's risked damaging the lambs (broken ribs are pretty common, for example). There are also important processes that take place during the course of a normal birth that will have been disrupted.
Fifthly, by spraying the lambs' navels before the ewe has had a chance to mother them he's upset the scent and the ewe may take longer to accept them.
So, in doing what he's always thought is "the best thing" he's compromised those lambs chances right from the start, and made them vulnerable to predation. Sure, you can shoot the foxes, but that doesn't get to the root of the problem.