I would say boy too. And with those green legs you probably have and Easter Egger instead of an Araucana.
Is she a Roo?? Pics - Page 2
Yep - I think they're right. Looks roo-ish to me, and looks to be an EE rather than Araucana or Ameraucana. Gonna be a handsome one!
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Just for fun: First & second generation "olive eggers," and a few ducks - Welsh Harlequin, Black Swedish, Black Runner.
The difference is explained pretty well in this thread. There is a lot of confusion on this issue as of late because the hatcheries aren't labeling their birds correctly.