EEs, Welsumers, and BOs . . . oh my!

Here are a few new pics of the EEs I posted about last month. They are about 2.5 months old now. Can anyone tell if they are boys or girls yet? I'm thinking orange-headed one is a pullet and the other is a roo. Thoughts?












These are hatchery Welsumers--at least, I think they are. I had some Welsumer chicks, some EE chicks, and some Campine Chicks, all of which looked kind of alike. I sorted by leg color (yellow, greenish, grey) and with luck they'll start developing feather that look like their respective breeds/types soon.

Welsumer roo?






Welsumer pullet?






Buff Orpingtons--any boys here? They are about 3.5 months old and they are starting to get pink combs, but none of them have the pointy feathers in their hackles or saddle feathers. I just recently switched them to DuMor Grower/Finisher.









Any helpful comments will be appreciated!

Thanks Schellie and Momm!  I'm pretty sure about the Welsumer being a roo. He chest bumps and is pretty dominant to the rest of the chickens. Plus, the feathers on his neck are a different shape than on the other Welsumer. I'm happy with all of the others being pullets, though.

This afternoon I took another look at the bird I thought was a Welsumer rooster and I thought I saw some iridescent feathers forming on his rear/in his tail. At what point do roosters start to look like roosters? His wattles are even more pronounced and redder than they seem in that picture, too.  I'm *really* hoping for a roo in this one. I know it's never entirely positive till they start to crow/develop secondary sex characteristics in their feathers, but how much longer do I have to wait?