usually the shepherd, if he has a lot of sheep, cannot find time to rear them. I have a friend who at one time had a lot of sheep and got a lot of orphaned lambs, i took some off him and when they grew up they produced excellent lambs, had tons of milk and their lambs reached a bigger killing weight. When buying any orphan lambs you have to be careful anyway, I don't personally buy any more, they were just a one off from someone I knew well, who i was helping out. I agree with asking the Q's about them though. Maybe the ewe just produced too many.