What breed are these chicks?

[Kearaaaa23]

Hello, these are unknown chicks I hatched in an incubator. Any ideas on what breed they may be and are they auto sexing? I think I’ve read something about a breed being auto sexing with a black spot on its head or back? I think it may be a Sussex breed but I’m unsure. Help!!

 

[SilverBirds]

Where did you get the eggs from? A lot of breeds look very simillar to each other as chicks. Unless you have a list of possible breeds it's anyone's guess as to what they are. Post some new pictures once they've feathered out, then we should be able to tell.