I can't answer - as I would also like to know. Out of 12 ewes, we have one that we arenot sure is in lamb or not and it is this one that is bullying another just like you said above. She had a grudge against the first ewe that lambed - they were separated by a gate in a barn, but eventually after lots of headbutting they beat the gate to pieces. The ewe that lambed has now gone out to grass and the "bully" is picking on a ewe that has been quite sick (but is now getting much better).