First time hatching duck eggs, second round of hatching eggs. Why has the duckling pipped in two spots? I have them in a cooler to hatch. I had 11 eggs in and than added 20 eggs a week later so I had to come up with a hatcher. The cooler is driving me batty trying to keep the humidity and temp at the right temp, lol. I'm happy the 20 eggs will hatch in the incubator, it's so much easier regulating everything. .