I don't know much about Brahmas, but your BR looks like a definite female.
Hey @Faraday40
How is your lavender Orp looking? Male or female?
We gave our mysyery blue orp some time to explore her feminine side.
Her comb & wattles haven't changed. She's 8 wks old, and I'm thinking female now. (or else I'll have to do another photo shoot.) Here she was a few days ago. My yard was a flooded mess & all the chickens pretended to be ducks. Wet Orpingtons are very pathetic & funny-looking. None were posing like they usually do, and all I got was a bunch of dirty looks. LOL
The blue orp's 4wk old little brothers have more comb development than she does!
I don't know much about wyandottes, but the rest look male to me.