I have a old cow that had a 100# or so calf a week ago, noticed today a two week old calf not hers nursing on her, after feeding cows noticed both calves nursing at same time, then later the two week old calf went back over to its mama and nursed! The old cow is a angus cross and her 100# calf looks limo cross big friendly fellow, both calves and mamas seem to be doing fine just didn't know if calves snack off others like that?