I'm new to this whole chicken business...my chicks are about 10 days old. Got them from McMurray last week. They are all eating and drinking well, very active, hopping around and now trying to fly a bit even. I couldn't tell there was anything wrong with any of them until I picked up my Ameraucana/EE Sadie. I always pet their chests when I hold them so they begin to warm up to me and be socialized. But this afternoon, I noticed Sadie had this giant hard lump on her throat/chest...like an oversized adam's apple!!! Is this normal??? I checked on some of my other chicks, and the other EE has a smaller one, and the Rocks, Buff Orps, and Aussies have the teeniest bump, but it's nothing compared to Sadie's. Her's is huge and hard, easily the size of a nickle. Is this a tumor? Can they develop them so fast? I only feed them organic chick starter, and some yogurt to help with pasty butts (which are cleared up). Even the filtered water that we drink. What is it??? Help!!