Worms for compost and fertile dirt

This will not be a 100% thought out post so developers can influence more and do a better idea so I'll list main features Found during rain near the surface with a brighter redder color, or found very rarely deeper underground in a more darker greyer duller color. Can be used to do some super composting and make new dirt that grows crops faster and looks darker or grass that auto grows flowers and plants. Can be used to fish better, put on fishing rod to get more fish and maybe cooler fishes/prizes. Can be used to breed birds and grow baby birds faster. Deeper earth worms should have 2 unique uses, but I'm not sure, or they just shouldn't exist and should be replaced with normal worms in the stone dirt patches.