Those appear to be Easter Egger roosters -- depending on the source they may be mismarketed as Ameraucana or the tell-tale misspelling Americana. Essentially, they are a mixed breed bird with some blue egg laying parentage.
There's a lot of great peeps here! Feel free to ask lots of questions. But most of all, make yourself at home. I'm so glad you decided to join the BYC family. I look forward to seeing you around the run.