Hen becomes rooster

Gertie, the hen suddenly became Bertie, the rooster, according to her, err, his owner. The article didn't convince me, but, the comments did. After some Googling, it seems it does happen. When a group of hens have no rooster, the head hen will sometimes take on the roll. One ovary will dry up and the other one produces testosterone. They even grow the cockscomb and learn to crow. Amazing, isn't it? My Gran had stories like this and I always shut my mouth and figured she was in old wive's tale mode. But, we didn't have the Internet then. Bertie's owner says he's been through far to much for the stew pot, she plans to keep him. Aww.