Does that include the human species? My problem with us scientists is that we fail to recognize (more like flat don't understand or choose to ignore) that every action has some reaction in the form of intended or unintended consequence. If one wants to make the argument that the "genie is out of the bottle" and the balance of nature has already been tipped, justifying that actions like this need to be taken to restore balance...my question is "do we know what the balance point is? New species are discovered and existing species go extinct... has something changed? In the case of the Barred Owls, do we know with certainty the reasons they migrated...might it have been the culmination of other well intended policies? I happen to believe in a power greater than man and that our constant meddling with nature does more harm than good.