I just had my first chicks hatch today! Three yellow chicks by a Barred Plymouth Rock. They must have been someone else's eggs. We (hubby and I) originally got our chicks (now the mama hen) from mail-order, so of course, we had to deal with the pasted vents for the first week. What I'm wondering is, now with chicks raised by a hen, do we need to be cleaning their vents or will mama somehow take care of that? Thank you for your help!