Those ones look to be a different age or maybe breed even, I can't zoom in far enough to see details. Some back yarders order chicks from hatchery and sell them after raising. Also I see some yellow legs and some white legs..yes, they all look like pullets to me first , but compare with the circle ones,, I am not sure. maybe they are from different rooster, not pure hyline brown.. . I didnt bid anyway. thanks you for your reply.
Always fun to play the guessing game, good luck picking a flock!