Tail feathers on buff brahma

[TLWR]

I picked up 3 chicks about 1.5 weeks ago. Sexed as pullets. The buff he had 2 males in with them but quick sexed again and said pullet.
I'm just adding these 3 this year and the buff brahma wing feathered as the other 2, but tail feathers are still missing while the other 2 girls have had theirs for close to a week.
If there is a good chance this is a male, I'd like to get another asap since thesetbabies are still young. I'm not sure if it is a breed where tail feather development tells me anything

 

[EggSighted4Life]

Huh.. how was he "sexing" them?

Not sure about Brahma either. The tail was accurate on all my birds until I got Sussex.

Honestly the barring on the EE looking wings makes me think male as the white looks wider than the black. But I am here to learn, so don't take my word for it.

 

[gimmie birdies]

My closest feed store 2 hrs there and back said they would have a bunch of selection in today, but I had to get there at 9:00am. They had so many breeds I could not list all they were going to have. When I got there they had 3 breeds, white meat birds, red meat birds, and Buff Brahmas.

I ended up getting 2 buff brahmas because I just hatched out a BCM/Ayam cemani chick and it needed a friend. One day old.