Judge Card says in his book, when one sees white in feathers which shouldn't be, that means one is coming to the end of black "strength" in that bird.
Needs to cross black back into that breeding. Here is his book, one of the best I have ever read on the subject of breeding laws. Note these are
breeding laws, not theories or opinions. Starting on page 20. http://archive.org/details/cu31924003158312 Judge Card was Danne Honours' uncle's uncle.
The apple sure didn't fall far from the tree there. A veteran judge and poultry man, Judge Card invented the White Laced Red Cornish.
Good info, thanks Karen! I have this book but had not read a lot of it yet. Have a ton of the old literature, but a lot of the time I was looking specifically for Java info and just did a search for "java" and read the pertinent Java info in the books, but haven't had time to read the each entire book.
Hmm, well if some Black needs to be bred into the Mottleds to try to improve the spots....Have some Blacks but the type on the females was lousy, so relegated them to the food-egg flock. The Black males looked good, but very aggressive - not with people but with other chickens. They stripped the females of feathers before we knew it - very aggressive matings and started when they were only 3 months old. So we butchered the Black males - their testicles were HUGE compared to the other Javas we have butchered. So if that is the case with needing an infusion of Black, may have to go looking for some good typed Blacks. We did hatch a few eggs from the Blacks just to experiment with new incubator. Have one Black pullet that is larger and has much better type than whatever hen she came from. Although she ended up with a floppy comb. Definitely some food for thought and planning....Love these old books and glad you brought that to my attention.