what happened to my hen?

[wickedwren]

I have a group of 6 easter eggers. 2 years old. One of which waddles like a duck. She is the outcast of the group and gets beaten up and pushed away from food. Two weeks ago I decided to separate here. The last few days she's been crowing. Looks like a hen. Sings like a rooster. What is this?

 

[aart]

A hen in a roosterless flock will often take on the roosters role...all the way up to crowing and mounting.
Her being picked on doesn't quite fit that premise tho.

Are you going to try and put her back with the flock...
...or put a couple of the flock back in with her/him?