Chick is active and seems fines. There are 9 other chicks that don't have this new bump. The chick didn't hatch with it and it maybe started growing about 2 days ago. We got a couple of new chickens that are in quarantine but they don't have any bumps or anything. They've had no contact directly with these chicks. The chick hatch 12/31/15
@Sally Sunshine
@casportpony