The pictures and first post were taken and posted when they were three months old...now they are six months old.
The white one is a Jap rooster...he crows, and tries to get the hens interested in his advances. Does the wing drag and circles...
The black and white mutt does the same...or tries to when the dominant rooster is not chasing him clear off the property.
All the roosters are very interested in the black one who does not crow. She returns the interest. A hen for sure.