Dont laugh....

[Ray]

Dang, that's a lotta cows fer 400 acres.
Our male donkey, Sugar Ray, would squeal around noon every day.
We used him to halter break show calves too.

If possible, keep the calves closer to the houses or closest to the
center of your land. We don't have big cats, but I don't think they
will drag a calf too far. It would be too much work.
There are cougars/panthers in the Merryville area. I seen that myself.
But that is another horror story.