No rancher who has been in business more than a few years is going to turn out more cattle than the land will support. That can be done by turning out 5000 head for two weeks twice a year or 500 for 10 months. Rounding up thin cattle to sell isn't the business ranchers are in. Maintaining the pastures to support a continued or growing AUM's is something every rancher knows or else is bankrupt very fast.