I bought some mike shearlings last September. They are in good condition but were 6 weeks out from lambing and I've started on some ewe rolls, but they just don't know what they are and don't come up and eat?! The handful of mules I already had do, but the new ones aren't. Am I panicking or any tips to get them feeeding. They are eating silage bale and the grass is more or less gone where they are.