I'm sure they are all mixed breeds.
The first cockerel appears to be black-tailed red, with the black diluted to blue, plus barring, plus a small crest. Yellow legs, single comb.
Parents or grandparents likely include Cream Legbar (crest, barring), Rhode Island Red or New Hampshire (black-tailed red), and something blue.
Olive Eggers often have a Cream Legbar parent, and most sexlinks have a Rhode Island Red father, so that's another way for those breeds to get into the mix.
Single comb, yellow legs: both common in a lot of breeds.
(One of the other chickens has white legs, so that one would have a white-legged or possibly a blue-legged parent.)
If I were trying to make a bird like the cockerel in the first post, I think I would cross an Olive Egger (Cream Legbar x Marans) with a Blue Sexlink. But there are LOTS of other options that could also work!
They are all pretty chickens
The first cockerel appears to be black-tailed red, with the black diluted to blue, plus barring, plus a small crest. Yellow legs, single comb.
Parents or grandparents likely include Cream Legbar (crest, barring), Rhode Island Red or New Hampshire (black-tailed red), and something blue.
Olive Eggers often have a Cream Legbar parent, and most sexlinks have a Rhode Island Red father, so that's another way for those breeds to get into the mix.
Single comb, yellow legs: both common in a lot of breeds.
(One of the other chickens has white legs, so that one would have a white-legged or possibly a blue-legged parent.)
If I were trying to make a bird like the cockerel in the first post, I think I would cross an Olive Egger (Cream Legbar x Marans) with a Blue Sexlink. But there are LOTS of other options that could also work!
They are all pretty chickens

