they are easily fooled by taking the skin of the dead newborn lamb, and putting the skin over a lamb that is motherless

Yes, I saw a demonstration of that on tv very recently.

You certainly know more about ewes than I do [he confessed, sheepishly].

[I was going to recognize your erewedition, but that could have unintended ramifications. So I'll take it on the lamb, instead. Adewe.]