One (or maybe two) at a time.
Ewes with triplets have a hard time making everybody happy at once as sheep have only two teats. Don't laugh, but this cityish girl did not know that. Goats and deer have just one pair also. Perhaps being raised in pig country we had a skewed model of farm animal mammary gland allocation.
Sometimes one triplet is introduced to another ewe who has one or none mouths to feed. Sometimes it works, sometimes not.
But the best thing about little lambs eating is the way their tails wag in contentment as soon as they latch on. Sorry. No video. You will just have to trust us that it is incredibly cute.