I had a yellow (most likely white) chick hatch yesterday from a pure lav. roo and a black split hen. I think this hen has a partridge gene because so far she has produced 4 striped chicks (maybe silver partridge), 2 blacks, and now this white one..... all with the same lav. roo. Just wondering what the lav. experts think is going on. The original breeder of the black split hen assured me that she is from a pure lav. roo.