Which sounds cause a chick to hatch best?

[bobabird]

I ahve heard that hens will make a sound to encourage their chicks to hatch, but i've also heard that chick sounds do aswell. Which is best?

 

[sourland]

I believe that hens softly talking/clucking to hatching chicks is part of the bonding process. I would guess that classical music would be very soothing.

 

[bobabird]

I believe that hens softly talking/clucking to hatching chicks is part of the bonding process. I would guess that classical music would be very soothing.

Thank you!