At le3ast around me, I am too worried about chemicals in the ground for WC worms. Even the ones you buy from a bait store were bred for bait, not for food. So I don't trust them either. But I figure that if a Ringneck lived in my yard, he was eating worms from my yard, so he should be fine.
I planted some bird seed. A bird came up. Now I don't know what to feed it.