If there is no bantam chicken to sit on peacock egg will still hatch?

No, a peacock egg will not hatch if there is no bantam chicken or other suitable incubator to provide the necessary warmth and humidity. Peacock eggs require specific incubation conditions, including a temperature of around 99-101 degrees Fahrenheit and high humidity levels. Without these conditions, the embryo inside the egg will not develop properly and the egg will not hatch.