I was taught don't shoot it if you don't intend to eat it.
So growing up crows were safe from my gun, pigeons weren't , woodcucks were fair game (younger ones are decent tablefair) beavers (delicious), wild duck & goose hearts,livers and gizzards were save and cooked.
I've had brains, liver,kidneys,eyeballs,sweetbreads,blood pancakes and sausage etc etc. I think boils down to here in the U.S. we've been spoiled with an abundance of food and the average person doesn't have that "poor" background were lower cuts of meat never hit the family table.