Anywhere from 6 weeks to 4 months. Depends on conditions. I have it in my incubator so I'm thinking with the constant temperature without the cooling at night, it will hatch soooner. It's at 88 degrees. It's been in there a month so far.
White Rocks. I have other meat bird chicks growing. I would like to cross them with Delaware's. My Delaware are only 5 weeks old at the moment, so we will see if the Cornish make it long enough to try.