Which one is a speckled sussex?

[Chickiechickieboomboom]

I ordered 3 chicks from Meyer Hatchery. They are now 3 weeks old. I know the darkest one (on the right) is a Barnevelder. I also ordered a Speckled Sussex and an Easter Egger. Anyone know which is which in my photos?

 

[sourland]

The bird on the perch is the Speckled Sussex.