Why do chickens peck at their own eggs?

or:Why do chickens peck at their own eggs?or:They don't peck, they roll them. And they do it with their beaks because that's all they have.or:They're

or:Why do chickens peck at their own eggs?

or:They don't peck, they roll them. And they do it with their beaks because that's all they have.

or:They're really not pecking at their eggs, but moving them to evenly distribute heat to the entire egg so it hatches properly. Most avian species do this, to tell you the truth. It's because they don't have the hands to do it, and rolling their eggs with their feet might prove to be dangerous.

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