Is this a Cornish cross?

[ebeagle35]

I have 15 Cornish cross chickens that will be two weeks old tomorrow. I have one chick that is significantly smaller, but is eating and drinking. I will post pictures through my phone so that you can see the size difference and difference in feet. Is it possible that this is not a pure cross, and if so what could this be?

 

[ebeagle35]

The chicken on the right in each of these photos.

 

[nj2wv]

Yes it is Cornish cross

 

[ebeagle35]

This chick is less than half the size of the other chicks.

 

[SD Bird Lady]

Could it be a white rock?