Have you ever seen wild horses lying dead due to starvation and thirst? BLM has to round up horses to stop them from dying on the range. Giving birth control to mares would be a great thing, they can control the size of the herds and still let some run.
I love horses and anything to do with them, but there has to be control of them. Just like reopening the slaughter plants, horses could be used for good instead of letting them die from neglect. Out here in Wyoming and it is happening in Utah and Idaho also, instead of having a place to send horses, whether sick, dying, untrainable, etc they are turning them loose on the desert and open ranges figuring the horses can fend for themselves.
I won't sign petitions to stop roundups, sterilize horses or stop slaughter houses from reopening. We need them as long as people will keep breeding unwanted horses just to experience the "fun of having a foal" from non breeding quality mares and non breeding quality stallions.