She's still laying. I've had other hens crow for years while still actively laying. It seems like when they figure out they can crow and it gets them attention they do it all the time.
My 5 year old hen has taken up crowing to get my attention. Every morning or whenever she feels ignored she gets up on a high spot and belts it out. She doesn't stop until I come out and spend time with her. Sometimes, I'm busy and give her treats just to shut her up. So, I am part of the...