I found another ant! (Hopefully queen)

[SkuLLbOnE]

I hate to be that guy that posts every ten minutes, but I genuinely think I got a queen. I'm probably wrong, but...
It is black with a slight yellow tinge (Could've been the lighting), and is about a half inch. I am in North Carolina. Now I would like to know the species, but my main question is whether or not it is a queen.
Image: http://imgur.com/a/cDE8N

[Batspiderfish]

Looks like a worker, although the ant isn't in focus.