Z has a typical coloring that you see in the black and white EE roos. The tail sticking up like it is is the other reason I see that he is a roo.
I had to get over the "rare exotic" freebie when my first two orders the freebies were a Red Star pullet and an EE cockerel. There were both nice birds though, except the dogs got to both of them. The roo I at least had breed a couple of hens for me before he got munched and I have two daughters laying green eggs for me now (or at least they did before the daylight shortened and they are pretty much on hiatus.) Free is free, and if I get one big enough to eat or a pullet once in a while, I won't complain. You just have to realize ahead of time that is probably isn't going to be rare or exotic. I did get a Lakevelder in the last one, too bad it was a stinking cockerel.