The temptation is to think that all animal behaviour patterns have evolutionary value, and maybe they have. That clearly involves killing prey or competitors in ways humanity may find unpalatable. Think about a cat toying with a mouse before giving it the last rites, or a fox killing far more hens than it could ever eat. We have to be a bit careful not to impose human standards of morality on actions like those that, frankly, we don't completely understand. Inserting morality to fill gaps in our understanding of animal behaviour is a bit reminiscent of inserting God to plug gaps in our scientific knowledge.

As for flocking, etc., my abundant use of speech marks in that post was meant to suggest strongly that I was using the word "moral," as I was applying it to animals, advisedly.