Actually five were born yesterday on my granddaughter's 18th birthday, and one overnight, and one has a big pip hole and is working on it. Lockdown was Thurs evening, three weeks is just about right now. I put 26 eggs in the bator to start with.
Lord only knows what they are...of the six hatched four have very feathered feet so they are at least half D'Uccle though I tried for some purebreds. That light one does not look like any chick I've ever hatched before.