Hi! So I have this chicken of about 4 months that his mom rejected and tried to kill, and we're raising separately. Mom and siblings are a smallish mix breed but they're still much bigger than her. She's so tiny that she fits in my palm and she's much calmer than other chickens her age, and a bit unstable with curly toes when resting. Is there any condition, disease or genetic, that might be related to this? Thanks in advance