Hen or Roo? Barred rock mix chicks - 8 weeks old

[Butt_Nugget_Hut092]

Hi,
These guys were supposed to be cuckoos, due to the feet coloration we are thinking more barred rock, but I was told due to some of the coloration they don't appear pure bred and are probably mixed.

Most from TSC, red banded chick is from rural king. Around 8 weeks old as of Yesterday, June 26th.

I've been thinking they were all pullets. Have had multiple people confirm it. But now I swear I'm seeing saddle feathers on some.
What are your thoughts?

Purple Band

Blue Band

Green Band

Red Band

Yellow Band

Green and yellow band are the ones I'm suspicious of.

 

[Quarterhorses1]

I’m really only suspicious of yellow band. Can you get a closer pic of the saddles?