Ah....well....there seems to have been a mix up.
The Shumen lay white eggs, but one is brighter white than the other. The legbar crosses lay light brown eggs, but one lays very light eggs.
We have two black Shumen chicks with white bums, like Solo. Then one looks like a blue, like Dad.
The last one definitely has yellow on it. So not Shumen, but a legbar cross/shumen. Sneaky!
To be continued.............