I noticed whole foods seems to have has labeling wrt how the chickens are raised. That said, aside from eggs the chickens are eaten in the end. (and I wonder about eggs, I've heard some are fertilized)
You should research what happens to "useless" male chicks born in the industry, as they don't produce eggs. Actually watch some videos of innocent animals being ground alive, screaming, because their existence doesn't make financial sense to humans. Wonder what label Whole Foods can assign to that.