empathy for non-human life is as dead as yours
Well that's the way it goes.
Those non-humans take their risk at life as I do on the freeway, have the same chance as I. At least I break for those who also take their chance on the freeway. I could also wax into Darwin's dilemma of why nature is so cruel but then along comes diner time and I get as hungry as all others.
I have lived long enough to see four generations die before me. While that only accounts for less than a hundred people that I miss. This planet would be in dire straights if that cruelty did not exist.
BTW: the birds who dash their brains into a window see a reflection of themselves in the glass and are attempting to drive a competitor away.