This is one of those "damned if I do, damned ifI don't" situations. As in Australia, the buns in NZ havetaken over the country-side and are threatening the natural/nativeanimals and vegetation. There are no natural predators tokeep their numbers down.
This is their last "course of action" after trying, all else.Unfortunately, as in Australia, some of the buns will "pull through"and survive. Then, they will breed new generations that willbe immune to the virus. It's a vicious circle. Alessen that we should all learn from........Never release your animals,no matter what. Charlotte