Possibly a bit of a daft question but we're new to sheep so I'll go ahead and ask it anyway. One of our ewe lambs has started sitting propped up on her front legs with her back legs to one side as when lying down. She doesn't do it all the time and continues to cud while she's doing it, is perky and alert, eating, not scouring, so in all other ways her usual self. Have we just got a weird sheep or should I be concerned? Needless to say every time I try to get a picture of her doing it she hops up and comes trotting over ever hopeful that something nice is coming her way.