Since there weren’t any there three hours earlier, they’d obviously have come from two different chickens even if they’d been absolutely identical – but in fact the warm one was noticeably paler than the four we’ve had so far. Although I’m reasonably certain that the first four came from Pearl, I can’t tell who produced the paler one, though I hope it was Queenie, as it means we can tell the difference between their eggs even though they’re from the same breed.
Anyway, I’ve updated the graph on the egg production page to reflect that there are now two different colours to contend with.