That is 100% a rooster. If you full view the picture you can see his saddle feathers coming in. The other rooster in the picture is probably the dominant one and keeping him from acting rooish.
Roha, who was perched on a 2 inch wide ledge above the door in the coop:
And Ihi (in orange) and Marama (in white) looking up at her:
What are they thinking?