Making the world better, one answer at a time. Most eagles only lay a single clutch of eggs. Each egg is laid about 3 days apart and incubation, the process of the eagles sitting on the egg to bring up the eggs' temperature, starts with the laying of the first egg. The eggs take almost precisely 35 days to hatch. Since the incubation starts from the time the first egg is laid, this means that the eggs hatch 3 days apart. The average for the west coast eagle populations is almost exactly 2 eggs per clutch.