incubation period of mallard duck eggs
The incubation period for mallard duck eggs is 26 and a half -27 days. Incubation Temperature. The temperature in the incubator for mallard duck eggs is 99.5 degrees fahrenheit.Humidity Levels. The humidity level (wet bulb thermometer) for mallard duck eggs is 84-88 degrees fahrenheit.he temperature in the incubator for mallard duck eggs is 99.5 degrees fahrenheit. Humidity Levels. The humidity level (wet bulb thermometer) for mallard duck eggs is 84-88 degrees fahrenheit.