You may be right it's a hard age to tell bc of the red wings I'd say yes, but the Crest looks small still so I'd say by 10 weeks you could see the saddle feathers if they are thin and pointy it's a boy! Round ends girl :)
Thanks hopin it was a she at first but I kept staring at those razor thin saddle feathers coming in and knew looking back I should of seen it sooner than 10 weeks old