[tialaramex]

I suspect the corvids aren't obligate carnivores and so they could choose not to eat animals but they do it anyway.

Given that humans aren't obligate carnivores and further more, are capable of advanced chemistry so that even if they were obliged to eat other animals biologically they could just work around this without needing to kill anything - it seems much more compelling to judge us by such a metric than them. We decided that we liked steak so much we would deliberately raise cows just to eat them, the crow can't be anywhere near that "evil" if that's how we're characterising this outcome.

[JohnMakin]

They're scavengers, I think scavengers are wired to eat whatever is available at the least expenditure of energy.