Need help identifying these chicks.

[Xavierseggs]

I bought some chicks off of a local person who posted them for sale on facebook. She said they were Rodes island reds and black sex link. Well obviously not. I belive the three are reds. The big black one looks like a silkie? He or she has feathers on its feet. The little ones have blue feet ive never seen this before. Ive only been in this a few years so any info will be greatly appreciated. Thanks .

 

[Poultry parent]

The gold and black ones
Look like seabrights. If the big black one has silkie feathers then it is a silkie.
Otherwise it's some other feather footed breed

 

[elizabethjg]

The small ones are gold laced sebrights, the black one looks more like a cochin mix, and then those reds look to be cockerels.

 

[Chicken Girl1]

The small gold and black ones are Golden Sebgrights, the red ones are probably hatchery RIRs or Production Reds, the black one is a mix.