Silkie2005
Crowing
It is possible that she is going through a sex change, I have heard that happens sometimes, but that is EXTREMELY rare. It is probably this thing that happened to one of my LF hens. In the absence of a cockerel, some hens (usually the top hen) get a rush of hormones that makes it act like it is the rooster, my LF hen even went as far as to mount and "mate" with the other hens.