When can you tell feather pattern and sex?

[slmwatts]

Hi all! I hatched 29 chicks 10 days ago. I got the eggs from a friend who has EE, prairie bluebells, starlights greens, OE, & WTB, with EE and WTB Roos. I realize these breeds mean pretty random coloring. Any way to predict what the mature bird will look like based on 10 day old feathers? Also, any way to sex them at 10 days… or when?? Pictures below.

 

[cherrynberry]

We do gender ID at 6-8 weeks as long as the birds are not sexlinked. Most birds are fully feathered right around 6 weeks and that is pretty much they will look like as an adult.