Cultural Diversity Skips the Nest

Just a short and late follow up to the blue egg in the chicken coop. 

I'm afraid the dream for a robin born in the barn under the tutelage of eight hens was short lived. On the third morning, the egg was fractured, though still in the nest between hens eggs. By evening, most of the evidence was gone. 

Accident? Sabotage? One can only guess.