Illia is always right when she says it's a boy with certainty. lol. I would say it is the big red comb, but also the patchiness of the patterning on the feathers. Girls usually look like they have nice even lacing, and his isn't quite as even. I am seeing that now that she pointed that out. I had one last year that looked just like him, actually. Mine developed the deep brick red on his shoulders, but it took a while, maybe 3 mos old? I don't really remember, but I thought he was a girl for a while until he sprouted those red shoulders!