what temperature does mallard duck eggs need to hatch
4. Start incubator several hours before adding the eggs to make sure the temperature stabilizes at 98â99.9 Â°F (36.7â37.7 Â°C) and Humidity at 30-50%. I have found that starting my incubator 24 hours before usually allows plenty of time for all the minor adjustments to be made prior to incubation of the eggs.allard ducks are amazing animals. And sometimes you want to help them hatch. It's important to not remove wild ducks eggs from any nest without the proper cause; however, if the mother is confirmed missing for over a period of 48 hours, you may be able to help. Ad.