Wondering about the original male 3506, I placed a nest with some nesting material in the German Roller hen flight. This hen quickly went and picked out a piece of nesting material and proudly carried it around the cage. From her behavior, brood patch, and swollen vent, she definitely has breeding in mind!!
Immediately, upon introduction into 3506's cage, she gave out a coy twitter and just like that he was smitten!! He was so happy he burst into a serenade and mating promptly occurred.
This whole deceptive hen saga affirms my belief that the hen really is the one responsible for mating and fertility!!