Fertile bird eggs can be purchased in natural settings. Heat is the most important factor in successful parrot egg incubation. Everything will be fine as long as the egg receives enough of it and is not allowed to lose too much of it for an extended period of time. Even though the actual temperature of the egg varies significantly when the hen is away from the nest, this is the case.Incubate the eggs in an incubator designed for parrot or bird eggs. The incubator you use should have accurate temperature control within one-tenth of one degree, and ideally a system for humidity control. Maintain the temperature at 99.3 degrees F, and the humidity at 40 to 50 percent.