Someone told me

That a wolf kills more than she needs.


It is true, if an animal triggers a prey response a wolf will do this, It doesn't happen all the time. But domestic stock by the very nature we have given it can send signals as prey that will trigger a response.
But the wolf is designed by nature to leave a surplus for other creatures that benefit from her kill.

That a wolf kills livestock

Yes, she can. So you must be clever and bring stock in close at night or when vulnerable, such as lame or sick or calving cows.
It is also Worth noting that some cattle are much more self reliant than others. Some breeds of stock are. It is worth it to think about creating a foundation of stock that can live in balance where you are.

Wolves are dangerous

One of the things that frightens me the most is how people forget that big predators are dangerous. And we do not want to acclimate them to people for precisely this reason. I wait for bad news from some National Park that will be used to unbalance the return of big predators.