This is just too young and it's hard to tell while they are being held. IF I were to make a guess, I'd say the first two are cockerels based on feathering & huge legs. I don't have an opinion on the third one.
Wait a few weeks... and take pictures (If you are able) with them standing on the ground.
Thanks. The 2nd and 3rd are the same bird. I got them from an female assorted bunch. But I'm thinking I got 2 or 3 cockerels. Waiting to be sure. Thx for input.