No, it is not that. JJ has not been close enough to that hen They were separated in late Feb. The only male that has been close to the blue hen is the lavender/self blue tom.
I think it is a mule, the cross between a guinea and a chicken. My wife said it is small in size and there was a hatched guinea egg but no baby guinea.
https://www.backyardchickens.com/t/834929/very-unusual-chick-guinea-chicken-hybrid/280#post_15347168
If by some miracle it was JJ's like a real long lived sperm, it is still a permanent resident. My wife named him and that means he is staying. But whatever he is he looks cool.
It is kind of fun not knowing for sure what I am getting. LOL
He has a funny posture I think too, BUT I have only seen the picture and not him... DW named him penguin and I think that means the posture must be weird for a pout.
Tell her to look for a snood (the bump on the head of a turkey). Snood=turkey