I had 3 eggs under a broody hen set to hatch today. Checked this evening: one external pip, one peeping, and one empty shell with no chick to be found. After an exhaustive search, I fear that another hen (I let her sit in the nestbox in the coop with the other hens) probably ate it. Is this likely? I've heard of chickens killing newborn chicks, but actually consuming and leaving no trace? Thank you in advance for any input! Edit: Another hen or, worse, mama herself. Yikes.