Very nice for clearing blackberries....but keep them away from your desirable plants as goats can be undiscriminating!
the goats are well known on changing the enviorements and plant growing. They eat the top of shrub and bushes and they do not let them grow. So the plants have new braches on side and still the goats eat the top of braches. They get wider and wider until the goeat can not reach to the centr of the wider plant and it grows in the venter only one steam. Later on (after some years) the shrub or bush look like an umbrella. Some times they are preaty and sometimes they are not so good.