Um, guys...do I have a possible rooster?

[Beaner]

The neighbors (where this bird came from at about 8 - 10 weeks old, I believe), are of the opinion that "Smokey" (below, in the middle with the gold leakage) is a rooster. The only one to crow has been the white one, and only once. The barred chicken and the black one that is in question both started "honking" a couple of weeks ago. Any thoughts on this? The older two birds are probably about 16 - 18 weeks and the younger two (the black one and the white one) are probably around 12 - 14 weeks. The three pictured below do a lot of fluffed up posturing with each other, but like I said, I haven't heard any crowing except for the one time.

 

[GoldenSparrow]

the feet and legs look roo.

 

[Habibs Hens]

defo a roo

 

[Beaner]

I think my barred bird is developing hackle and saddle feathers, as well as cream feathers on its head. Is it possible that I may have a crele rooster? If that's the case, I would keep the barred male and probably return the black one to the neighbors in exchange for a mature hen.