Our silkie rooster didn't develop a severe cross beak until he was 2 months old. Most of what I read said that he should be culled or he would need hand feeding or he would eventually starve to death. Well, we did nothing, and he, at 7 months, is just as robust and active as ever. He shares roostering duties with a white silkie (among 5 standard hens). He is a great bird and an excellent rooster, always watching out for his girls. We will, of course, hesitate to let any of his offspring hatch.