What breed are my chicks?

[Vconde09]

hello
My brother got some chicks from an auction.Can anyone tell me their breeds?

 

[21hens-incharge]

To me they look like mixed breeds.
That last one is a cockerel by the way.

 

[chrissynemetz]

I'm honestly not sure about their breeds either, but that last one is definitely a little cockerel. They're super cute