- Mar 11, 2007
Do eggs start to pip on the 20th or 21st day? In all my books it shows in the diagrams that on day 21 the chicks are standing there, hatched and fluffy. So do they pip on day 20 or 21? Assuming the temp has stayed a stable 99.7 most of the incubation period and 98.8 the last couple days. Tonight is day 20.