Breed & sex identification please!

[Beki]

We are a newbie chicken family and have adopted some chicks from a local kindergarten class. THey came from a white, blue and 2 brown eggs. The chicks are now about 7 weeks old.

I think I've ID'ed the black as an Easter egger. Not sure about the white or brown ones. One brown chick has a more reddish hue than the other.

Any thoughts on the breed or sex would be greatly appreciated! Thanks!

 

[Painted Calls]

Easter Eggers/Mixed breeds. The white one and darker red one look like cockerels. Your lighter red one looks questionable. Your black one is a pullet.