It goes without saying that a bird's death is inevitable, but a cat killing a bird does not have to juggle the same sort of values with which a man must be concerned. For now, suffice it to say that to kill for self-protection or food on your plane does not involve you in what we may call for the first time, I believe, karmic consequences. To kill for convenience... or for the sake of killing involves rather dire consequences, and the emotional value behind such killing is often as important as what is killed. That is, the lust [for] killing is also a matter that brings consequences, regardless of the living thing that is killed.
p. 184-185 - Seth, Dreams & Projections of Consciousness, (1986)