Spark and I set up the incubator and put some chicken eggs in there with high hopes that they will hatch. Our track record with chicken eggs is not very stellar. We have had lots of success with duck eggs, but not chickens. Ideally the hens would sit on the eggs and hatch them, however, our hens tend grow weary with the sitting part and do great for the first couple of weeks and then abandon the eggs. In 21 days we will see if we have chicks or not.