Here's a picture of the newer babies that was taken on Sunday:
Their names, in order of age, are Boogie, Woogie, Biff, and Snowbird. Not that I can actually tell Boogie and Woogie apart!
It looks to me like Boogie and Woogie are cinnamon, which means yet another genetic surprise. Like lutino, cinnamon is a sex-linked trait so if these chicks are actually cinnamon they have to be girls and they had to have gotten the trait from their dad. These two chicks fledged this morning.
Biff is whiteface, and doesn't have enough feathers yet for me to be sure if he/she is gray or cinnamon. Snowbird is a whiteface lutino girl.