We have two lambs that were born about three weeks ago. The mother seemed to bond fine. She cleaned them and was nursing them well until we put them back with the other sheep. Then, a few days ago, it seemed that the mother didn't want to nurse them. Everytime they try to nurse, she stands for a VERY short time and then walks away from them. We put them together in a pen and have been tying her up so that they can nurse more easily, but she still works really hard to keep them from nursing. I'm concerned that they aren't getting enough milk. They do eat quite a bit of grass and clover.