How long does it take for ruffed grouse eggs to hatch?

Ruffed grouse eggs typically take about 24 to 30 days to hatch after the female begins incubation. The incubation process usually starts once the female has laid a full clutch of eggs, which can range from 9 to 14 eggs. During this period, the female remains on the nest to keep the eggs warm and protected until they hatch.