Ive been breeding black Australorps for 2 years for show (which have won awards). I am having a problem with white feathers. One on the girls that was hatched last february has molted and she has alot of solid white feathers and some partials. The others have white ticking at the tips of the wing. They come from a very good line and the person I got the birds from is having the same problem. We get our feed at the same location as the person we got the birds from. Dont know if its the feed or something else. Any input would be great.