Moral considerablility is not exclusive to moral agents

I am 100% behind the idea that other animals do not have moral responsibilities to us or to each other, yet I dont believe that this ability to be held responsible is the only determining factor in moral considerability. As I said Monday, moral judgements are making a claim of what is 'good' or 'bad' and I think that Nature definitely should be considered morally! If we eradicate a species from the planet, to me this is a bad thing! A morally wrong thing! Especially if it is not in direct relation to the protection of our own species (which I acknowledge must be our first concern, as we are indeed members of our own species). Thus I think that in the case of extinction, (as we are the only creatures known to cause this) we should be held morally responsible toward nature.