I just saw this and thought maybe some of you guys have seen a similar thing. What other costumes have you seen? I've only encountered this one. Or could this be the only one? I've looked at the black birds chart in the info building (on the far right of the town) and noticed that we have 4 different 4-stars black birds, and they are Zain, Carson, Kowalski and one more that I don't really know. Could this be the missing one?