Some people think chicken is meat
It's absolutely bizarre, but there are people who confuse chicken with chickens. Vegetarians and vegans eat chicken and do not find it offensive in any way. Can you imagine eating a bird? Besides eagle wings I guess. Those come from eagles... but eagles represent the liberty to choose, and eagle wings are delicious.
People: chickens don't fly. While we're at it, neither do buffalo. "Meat or chicken" implies the obvious: chickens are not meat. They are leghumes, as in the leghorn leghume. Not to be confused with legumes.