Help! What gender?

[SophieReed]

Hello,
Below are pictures of my 7 week old Easter Egger/ Polish chick. I think it is a female, but i am not sure. It is mostly black, with a few brown splotches.I have 2 roosters that are in its flock, and they fight each other. However, this one stays away and just pecks the ground. I havn't heard any crowing from it, just loud cheeps. I have heard crowing from my other 7 week old roosters. I would love a second opinion, If it is a rooster i have to sell him asap. Thanks!
-Sophie

Here is a picture of under his wings so you can try to make out any saddle feathers

 

[BantamFan4Life]

Looks like a cockerel to me.

 

[SophieReed]

Could you explain to me how you figured that out? I am new to this and would love to find out how it is done.

 

[BantamLover21]

I don't see any obvious cockerel signs yet.

 

[SophieReed]

Thank you for your reply!