I picked up five adorable "silken" chicks four weeks ago. One's an obvious little cockerel, but the others are harder to tell. What do you think? I'll update this post every few weeks so we can get a progression going 
1) Cockerel? Bigger than the others, with a comb that popped up early but isn't showing any color yet. Has a more vertical, "rooster-type" stance when it's walking around.
2) Pullet? Comb hasn't changed much in the past few weeks.
3) ?? These walnut combs are so hard! Pretty broad with lots of bumps, but no color and it hasn't changed much in the past couple weeks. The chick itself is one of the smallest with a hen-type body that's always horizontal (though maybe that's a cochin thing).
4) ?? Another tricky walnut comb, but different than #3 above - flatter, but has been reddish since week 1. The chick is small with a more horizontal, hen-type posture.
4) I have no idea!! Ha ha, just kidding
I mean look at that comb! Total roo, total sweetheart.

1) Cockerel? Bigger than the others, with a comb that popped up early but isn't showing any color yet. Has a more vertical, "rooster-type" stance when it's walking around.
2) Pullet? Comb hasn't changed much in the past few weeks.
3) ?? These walnut combs are so hard! Pretty broad with lots of bumps, but no color and it hasn't changed much in the past couple weeks. The chick itself is one of the smallest with a hen-type body that's always horizontal (though maybe that's a cochin thing).
4) ?? Another tricky walnut comb, but different than #3 above - flatter, but has been reddish since week 1. The chick is small with a more horizontal, hen-type posture.
4) I have no idea!! Ha ha, just kidding
I mean look at that comb! Total roo, total sweetheart.
This is my first time buying straight run, so maybe it's beginners luck 