Vance; I'm not calling this an absolute truth, but my experience has been this; The nannies have to have given birth very recently and lost the baby. Then what I've done is take the dead baby and rub it all over the other baby. Then put it where the other was born at. They seem to favor the birthing place for some reason.
10framer; Some of my goats have udders comparable to cows - no joke. Comparable as in 1/2 the size. This particular nannie would stand for all four. I don't like seeing more than two. When my wife said she had four I immediately said without looking, "They ain't all gonna make it." We lost one today.
My wife cried and I made up a poem;
its over the fence you go