Olive egger roos?

[SuperMurshy]

Safe to say these are all roos?
1 month old olive Eggers

 

[JedJackson]

Chickens can always surprise you, but going on what is visible now I think they are all males.

 

[SuperMurshy]

Chickens can always surprise you, but going on what is visible now I think they are all males.

The black one already has the copper colour coming on the wings too!

 

[JedJackson]

The black one already has the copper colour coming on the wings too!

That's a pretty sure sign.