Hen or Rooster?

[red_chikn]

I'm assuming this is a black copper maran (or sex link?). The bird is almost 5 months old and I'm not quite sure if it is a hen or rooster. Please help! Thanks!

 

[Brahma Chicken5000]

Black Sex Link pullet.

 

[Jules929]

X2.

 

[Poultrybreeder]

X3

 

[sourland]

X 4, and about to lay.

 

[red_chikn]

Thank you all so much for the feedback! I'm relieved now lol! Also thanks for the breed info! This site rocks!