Farmer, rancher, cowboy/cowgirl, cattle producer, hired hand, etc.
farmer
Cowboy
Cattle producer.
A dairy farmer.
Australian's terms for cows and cattle are pretty much the same as what North Americans and British call them: cows.
farmers tend to plants & animals shepards tend strictly to sheep, goats, etc.
Cows. They speak English there you know....
A herd.
The cow is the only one responsible for the care of her calf. Bulls usually are not, though sometimes they may be used as baby-sitters while the cows go off to graze.
The cows are maybe too weak to care for or the farmer wants the meat. dead cows rawk !!
calf
a herd
Calves are cared for primarily by their mothers or dams being the cows. This is evident in a beef cattle herd, less so in a dairy herd, at least those in North America. North American dairy farms hire people to care for the dairy calves, leaving the cows free to be able to be milked twice a day.
Who knows; cows don't talk, so they'll never tell.