Think of it as a horse race, a record-breaking horse race, such as Belmont in 1973.
Everybody starts at the same time. The advocacy groups would have you believe that it’ll be a photo finish, everybody neck-and-neck in terms of their impact on wild horses.
Not so.
Way out in front are the public-lands ranchers.
Far behind are the drillers, miners and loggers.
In between are the advocacy groups themselves, masquerading as defenders of wild horses but actually allies of the ranchers. Obsessed with contraceptives, they’re getting rid of more wild horses than any of the ‘miscreants’ in the back of the bus.
Although Sham ran well initially, he faded into the background and finished last, a symbol of wild horse advocacy almost fifty years later.
Western Horse Watchers Association 
Please don’t speak for all advocates of Wild Horses and Burros. Not all advocate the use of PZP.