The first day I had an egg laid it was from a comet, when I removed that egg there was a RIR sitting in another box, 10 minutes later there was an egg in there, the same dark color. That was 2 weeks ago and so far I have gotten one egg every day, I think from the comet. I thought it was odd that the RIR laid one egg 2 weeks ago and from what I have seen has not laid again. Maybe her and the comet are alternating days but the eggs I am getting each day are almost identical.
When I looked online at RIR egg images I saw some that were pale in color so I wasn’t sure. Plus I figured the other comets and RIR’s would start laying before the Barred Rocks just based on what I had read about when they “typically” start laying. I know there are always exceptions.