Hi Catsew, that's one intriguing bird you've got there! Is it pure NN, or is there something more feathery going on in its genome? Either way, I'd say its head could be just about passed off for female (don't know about NNs but I've had other breeds where comb is that big in females), but the tail is looking rather luxuriant for a hen. Fingers crossed its whatever you want it to be!