Need help identifying 2 week old chick breeds

[sesameandginger]

These two chicks came from a feed store in the bin labeled Rhode Island Red or Plymouth Rock. Yet something tells me that they may be something different. There is a light colored chipmunk marked one and an all black one with minimal markings. My guess is they are around 2 weeks old. Thanks!

 

[sesameandginger]

Here's another pic of them together for good measure I'm already so in love with these chicks (even if they turn out to be roosters!) I'm now thinking the dark one is a sex-linked one...