Hen or Roo?

[Nbenke35]

I ordered six females from a hatchery. They sent seven, and I'm afraid that the extra one might be a rooster! They are 20 week old BO's and as far as I know, they are not laying yet. They free range in our yard all day. Haven't heard any crowing yet, so I'm hopeful this one is just an early bloomer
What do you all think?

 

[Ol Grey Mare]

20 weeks? That's a pullet ready to lay..... even toned plumage, no male saddle or hackle feathers, etc

 

[Poultry parent]

The one in the back looks like a roo, can you get some more pictures from the side so any saddle or hackle feathers are visible?

 

[chicken4prez]

The one in front looks pulletish and the back looks like a rooster. I agree with @Poultry parent about the pictures.