Difficulty Sexing a Chicken, Please Help

[BigJoe]

I've got a Frizzled Chicken around 6 months old and I'm not too sure if its a hen or a roo. I think it may be a roo, my wife thinks its a hen.He/She hasn't started to crow or lay eggs...Any help would be great!

 

[gardendufus]

Sorry I can't help. You should post this in the What Breed or Sex is This thread under Breeds.