Silkie chicken eggs take approximately 21 days to hatch. The process can vary slightly depending on the incubation conditions and the age of the hen, but generally, hatching takes place within three weeks. During this time, it is important to maintain a consistent temperature and Relative Humidity (RH) level in the incubator. If these levels fluctuate too dramatically, it can cause difficulties during hatching and may even result in death. Once the eggs have started to hatch, it is also important to provide adequate ventilation to prevent the chicks from suffocating.