In addition to being a good momma, with adequate milk, and zero calving problems, you won't have to worry about coyotes, either. Back in Feb or March, when we had some new calves, some of our Corrs killed one and broke another's back ( which Scot found and shot it after it got light.) Scott was up at 4 AM that day, and the cameras we had put down at the Kudzu Place pole barn, and one at the arena, looking toward the pond, alerted. We had them there due to some theft and poaching. He saw 2 come into camera range from out of the woods, One had the calf by an ear, and was kinda dragging it kinda leading it, while the other looked like it was trying to hamstring a back leg. Momma came into camera range at a full charge, with 2 or 3 more behind her. When she caught up to them, the one after the back leg, turned loose and veered off, right in the path of one of the other cows, She never slowed up...hit him in the gut and ribs, and threw him so high over her head he went out of the camera range for a second. Broke his back when he hit, I guess, because he crawled out of camera range with his front legs, dragging his body and hind legs, toward the woods. The one that had the ear, got bowled over by momma, then she turned and just drove her horns in him, pushing him along about 20 feet., then she got on her knees and just grinded him into the ground. Others came up about that time, and joined in. They had calves too, that were tagging along behind them. I guess those cows figured the yotes could have just as easily got one of theirs. In all of our years, we have never lost a calf to a coyote( or anything else) down there. This was the first attempted predation that we know of. and after seeing that trail cam footage , I know why! Calf was unhurt, by the way.... just some scratches and a torn ear. Probably took Scott 4 minutes to get out his kitchen door, onto a 4 wheeler and get down to the pole barn, and it was all over by the time he got there.