Yes. Well Bernie behaves like a rooster in many ways including 'mating' Babs from time to time (who in turn squats for Bernie from time to time).I am just going to throw this out there then for flocks in general.
I feel for a stable flock dynamic there needs to be 1 rooster. If that rooster is lacking you will see a hen step up to try to fill that role. I guess that can even include crowing.
She also paces about outside the nest box when Babs is laying an egg and accompanies her back outside when she is done.
Bernie often stands like a rooster and I would not be remotely surprised to hear her crow. Only I am not sure it was actually her that crowed.
The one part of the rooster handbook that Bernie has not read is the whole food sharing thing. She is not at all keen on that idea.