Anniebee
Crowing
A laying pullet or hen only has one functioning ovary. If that ovary becomes damaged a female chicken will start to grow a larger comb and take on more male attributes. they may even start to crow, but they will never lay eggs.
Thank you for your reply. Learning something new every day - and today it is that hens have only one functioning ovary. She / it is very much a pet, and I don't expect too much from her at all ... yesterday she was busy practicing her half-crow again !! Struts around like a rooster does too. Gorgeous chook.
Cheers ...