Houdans, cochin, silkies

[Araymond]

I need help with sexing my chicks. The houdans are about 6 weeks , cochin is too. My silkies maybe 4 weeks but not positive. I am new to all of this.

 

[Holdthechicken]

I can’t say on the Houdans cause I don’t have experience sexing them, and the silkies are too young, but the Cochin definitely looks like a cockerel.