Observes Bate: “When we played them the sound a mother hen makes after chicks hatch, which to my ear sounds identical to the feeding call, the chicks became immobile. ”
Bate mengamati, ” Sewaktu kami memutar rekaman suara induk ayam setelah menetaskan telur, yang di telinga saya mirip panggilan untuk makan, anak - anak ayam itu tidak beranjak. ”