First thought by the picture was male and then I first read cooo as coco and thought it was the two syllable sound of a girl but if it's a single syllable cooo then I'm sticking with male.
Either way it's a good looking guinea!
Awesome - thank you! The coo is like a soft trill-type whistle, almost like a purr - it's not either of the sounds the boys or girls are supposed to make so it had me stumped.
So, I have another question. He started picking on the chickens a couple of weeks ago, pecking and chasing them. I tried separating him from the chickens for about 2 weeks, then put them back together hoping he would fall down the bottom of the pecking order, but no luck. He just won't stop chasing and pecking them & they're all terrified of him. Is there a way to fix this behavior or is that just what boys do?