Are my bantams cochins?

[Elamb12]

We got 4 of these from Tractor Supply and my husband thought they were silkies. Now that they are 9 weeks old I am certain they're not silkies but I'm wondering what they are? Are they Cochins? Also, how can I tell what sex they are? Thanks for any help you can give me :0)

 

[Hatching]

White and red Cochins. White is a pullet, the red is a cockerel

 

[Wyandottes7]

White and red Cochins. White is a pullet, the red is a cockerel

Agreed.

 

[BantamLover21]

White and red Cochins. White is a pullet, the red is a cockerel

x3