Okay, so I have a hen who is acting like a rooster. She's laying eggs, mounting the other hens, and just started crowing. I've been told she is an Ollie? My other girls are rock/RIR mix. Any idea?
I have to second Keesmom's question: how old? I can't quite tell from that pic what gender it is, but knowing the age will help a lot.
Best wishes.