We had a angus heifer calf born January 20th who was on her mom and doing well. Last week, our Hereford delivered a little bull calf who is also doing very well. The Hereford's udder is probably 3 x the size of the angus, and now the heifer calf seems to prefer to nurse from the Hereford, who doesn't kick her off. Is this a situation we should allow, or should we pen them in different areas to allow the bull calf all of the Hereford's milk?. She seems to be able to handle both calves, but her calf is pretty small since he is a Dexter cross. We haven't been watching, however we think the angus calf is probably still going for her mom as well.