I know the Red lays every day. The black and unknown... I haven't caught either one of them in the act of laying yet, but one of them is laying a HUGE dark brown egg.
Unknown chicken egg at the top, then red sex-link, then bantam RIR, then OEG, then the second egg my Barred Rock ever layed.
This picture really doesn't do justice to the size and deep brown color of the top egg. It's fully twice the size of a 'normal' large sized egg. The yolk is as big as a half dollar. Freakishly, consistently, large egg.