I think mixed breeds, not sure what breeds were mixed. Looks like all males, except the black one looks to be a girl. They are pretty! OK edit, I looked around and I think you have Easter egger mixes. If you could ask the friend what chickens they have, people on here could probably narrow it down to what breeds you have.
Well you have at least 3 out of 4 cockerels that's for sure. I can't see the black one well enough to be sure but the general shape suggests pullet. If I'm right, you are going to need to get a female friend for her and make a bachelor pad for the lads or keep one cockerel with her and get him several more ladies. Once those hormones start raging (and it will be any time now) there is a risk that she will be seriously injured (she will almost certainly be stripped of feathers off her back) and her life will be a misery... basically, she will be constantly raped by them Older more mature roosters can be kept as a pair or trio but those juvenile male hormones are pretty insatiable for just one or two hens.
They appear to be mixed breed birds, but I'm no expert
I figured I had at least two roosters. I do have another female, she is a rhode island red.
I will get my hubby to make a bachelor pad (I love that, how cute is that for the roosters).
My friend has no clue what type of breeds, she got a mix of eggs and hatched them in an incubator.
Maybe I will try and find a home for one of the boys.