A reader left a comment in which she wondered why Bonnie only has boys. Well, it's just like with humans: Each time a female is impregnated, there is a 50/50 chance the baby will be a boy. This has nothing to do with what sex their previous babies were, it's just the luck of the draw and the chance is the same every time... 50/50.
What Cliff and I can't figure out is why a Jersey cow, one of the smallest breeds of cattle, has such huge babies every single time. The last two times we would probably blame it on the breed of the bull she was mated with, but her first calf was pure, 100% Jersey. And he was huge, even though he was out of a first-calf heifer. A heifer's first calf is usually somewhat smaller than average.
Oh well, I guess it's OK as long as Bonnie lives to tell about it.